X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=libiberty%2Fcp-demangle.c;h=a5d18170536b95326c7b906c6ae1fe1abc27972d;hp=58aed0d5f4fda15dadb005056ace043db8a8a185;hb=f2c17d01513786ba2e312afa3d07f6a6337662cb;hpb=e5d6924a2df715273e645f91b38ef8862eb09d87 diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c index 58aed0d5f4f..a5d18170536 100644 --- a/libiberty/cp-demangle.c +++ b/libiberty/cp-demangle.c @@ -1,12 +1,23 @@ -/* Demangler for IA64 / g++ standard C++ ABI. - Copyright (C) 2000 CodeSourcery LLC. - Written by Alex Samuel . +/* Demangler for g++ V3 ABI. + Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Written by Ian Lance Taylor . - This program is free software; you can redistribute it and/or modify + This file is part of the libiberty library, which is part of GCC. + + This file is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. + In addition to the permissions in the GNU General Public License, the + Free Software Foundation gives you unlimited permission to link the + compiled version of this file into combinations with other programs, + and to distribute those combinations without any restriction coming + from the use of this file. (The General Public License restrictions + do apply in other respects; for example, they cover modification of + the file, and distribution when not linked into a combined + executable.) + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the @@ -17,2813 +28,4178 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* This file implements demangling of C++ names mangled according to - the IA64 / g++ standard C++ ABI. Use the cp_demangle function to - demangle a mangled name, or compile with the preprocessor macro - STANDALONE_DEMANGLER defined to create a demangling filter - executable. */ +/* This code implements a demangler for the g++ V3 ABI. The ABI is + described on this web page: + http://www.codesourcery.com/cxx-abi/abi.html#mangling + + This code was written while looking at the demangler written by + Alex Samuel . + + This code first pulls the mangled name apart into a list of + components, and then walks the list generating the demangled + name. + + This file will normally define the following functions, q.v.: + char *cplus_demangle_v3(const char *mangled, int options) + char *java_demangle_v3(const char *mangled) + enum gnu_v3_ctor_kinds is_gnu_v3_mangled_ctor (const char *name) + enum gnu_v3_dtor_kinds is_gnu_v3_mangled_dtor (const char *name) + + Preprocessor macros you can define while compiling this file: + + IN_LIBGCC2 + If defined, this file defines the following function, q.v.: + char *__cxa_demangle (const char *mangled, char *buf, size_t *len, + int *status) + instead of cplus_demangle_v3() and java_demangle_v3(). + + IN_GLIBCPP_V3 + If defined, this file defines only __cxa_demangle(). + + STANDALONE_DEMANGLER + If defined, this file defines a main() function which demangles + any arguments, or, if none, demangles stdin. + + CP_DEMANGLE_DEBUG + If defined, turns on debugging mode, which prints information on + stdout about the mangled string. This is not generally useful. +*/ #ifdef HAVE_CONFIG_H #include "config.h" #endif -#include +#include #ifdef HAVE_STDLIB_H #include #endif - -#include - #ifdef HAVE_STRING_H #include #endif #include "ansidecl.h" #include "libiberty.h" -#include "dyn-string.h" #include "demangle.h" -/* If CP_DEMANGLE_DEBUG is defined, a trace of the grammar evaluation, - and other debugging output, will be generated. */ -#ifdef CP_DEMANGLE_DEBUG -#define DEMANGLE_TRACE(PRODUCTION, DM) \ - fprintf (stderr, " -> %-24s at position %3d\n", \ - (PRODUCTION), current_position (DM)); -#else -#define DEMANGLE_TRACE(PRODUCTION, DM) -#endif - -/* If flag_verbose is zero, some simplifications will be made to the - output to make it easier to read and supress details that are - generally not of interest to the average C++ programmer. - Otherwise, the demangled representation will attempt to convey as - much information as the mangled form. */ -static int flag_verbose; +/* See if the compiler supports dynamic arrays. */ -/* If flag_strict is non-zero, demangle strictly according to the - specification -- don't demangle special g++ manglings. */ -static int flag_strict; - -/* String_list_t is an extended form of dyn_string_t which provides a link - field. A string_list_t may safely be cast to and used as a - dyn_string_t. */ - -struct string_list_def +#ifdef __GNUC__ +#define CP_DYNAMIC_ARRAYS +#else +#ifdef __STDC__ +#ifdef __STDC_VERSION__ +#if __STDC_VERSION__ >= 199901L +#define CP_DYNAMIC_ARRAYS +#endif /* __STDC__VERSION >= 199901L */ +#endif /* defined (__STDC_VERSION__) */ +#endif /* defined (__STDC__) */ +#endif /* ! defined (__GNUC__) */ + +/* We avoid pulling in the ctype tables, to prevent pulling in + additional unresolved symbols when this code is used in a library. + FIXME: Is this really a valid reason? This comes from the original + V3 demangler code. + + As of this writing this file has the following undefined references + when compiled with -DIN_GLIBCPP_V3: malloc, realloc, free, memcpy, + strcpy, strcat, strlen. */ + +#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') +#define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') +#define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') + +/* The prefix prepended by GCC to an identifier represnting the + anonymous namespace. */ +#define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_" +#define ANONYMOUS_NAMESPACE_PREFIX_LEN \ + (sizeof (ANONYMOUS_NAMESPACE_PREFIX) - 1) + +/* Information we keep for operators. */ + +struct d_operator_info { - struct dyn_string string; - struct string_list_def *next; + /* Mangled name. */ + const char *code; + /* Real name. */ + const char *name; + /* Length of real name. */ + int len; + /* Number of arguments. */ + int args; }; -typedef struct string_list_def *string_list_t; - -/* Data structure representing a potential substitution. */ +/* How to print the value of a builtin type. */ -struct substitution_def +enum d_builtin_type_print { - /* The demangled text of the substitution. */ - dyn_string_t text; - - /* The template parameter that this represents, indexed from zero. - If this is not a template paramter number, the value is - NOT_TEMPLATE_PARM. */ - int template_parm_number; - - /* Whether this substitution represents a template item. */ - int template_p : 1; + /* Print as (type)val. */ + D_PRINT_DEFAULT, + /* Print as integer. */ + D_PRINT_INT, + /* Print as long, with trailing `l'. */ + D_PRINT_LONG, + /* Print as bool. */ + D_PRINT_BOOL, + /* Print in usual way, but here to detect void. */ + D_PRINT_VOID }; -#define NOT_TEMPLATE_PARM (-1) +/* Information we keep for a builtin type. */ -/* Data structure representing a template argument list. */ - -struct template_arg_list_def +struct d_builtin_type_info { - /* The next (lower) template argument list in the stack of currently - active template arguments. */ - struct template_arg_list_def *next; + /* Type name. */ + const char *name; + /* Length of type name. */ + int len; + /* Type name when using Java. */ + const char *java_name; + /* Length of java name. */ + int java_len; + /* How to print a value of this type. */ + enum d_builtin_type_print print; +}; - /* The first element in the list of template arguments in - left-to-right order. */ - string_list_t first_argument; +/* Information we keep for the standard substitutions. */ - /* The last element in the arguments lists. */ - string_list_t last_argument; +struct d_standard_sub_info +{ + /* The code for this substitution. */ + char code; + /* The simple string it expands to. */ + const char *simple_expansion; + /* The length of the simple expansion. */ + int simple_len; + /* The results of a full, verbose, expansion. This is used when + qualifying a constructor/destructor, or when in verbose mode. */ + const char *full_expansion; + /* The length of the full expansion. */ + int full_len; + /* What to set the last_name field of d_info to; NULL if we should + not set it. This is only relevant when qualifying a + constructor/destructor. */ + const char *set_last_name; + /* The length of set_last_name. */ + int set_last_name_len; }; -typedef struct template_arg_list_def *template_arg_list_t; - -/* Data structure to maintain the state of the current demangling. */ +/* Component types found in mangled names. */ -struct demangling_def +enum d_comp_type { - /* The full mangled name being mangled. */ - char *name; - - /* Pointer into name at the current position. */ - char *next; + /* A name. */ + D_COMP_NAME, + /* A qualified name. */ + D_COMP_QUAL_NAME, + /* A local name. */ + D_COMP_LOCAL_NAME, + /* A typed name. */ + D_COMP_TYPED_NAME, + /* A template. */ + D_COMP_TEMPLATE, + /* A template parameter. */ + D_COMP_TEMPLATE_PARAM, + /* A constructor. */ + D_COMP_CTOR, + /* A destructor. */ + D_COMP_DTOR, + /* A vtable. */ + D_COMP_VTABLE, + /* A VTT structure. */ + D_COMP_VTT, + /* A construction vtable. */ + D_COMP_CONSTRUCTION_VTABLE, + /* A typeinfo structure. */ + D_COMP_TYPEINFO, + /* A typeinfo name. */ + D_COMP_TYPEINFO_NAME, + /* A typeinfo function. */ + D_COMP_TYPEINFO_FN, + /* A thunk. */ + D_COMP_THUNK, + /* A virtual thunk. */ + D_COMP_VIRTUAL_THUNK, + /* A covariant thunk. */ + D_COMP_COVARIANT_THUNK, + /* A Java class. */ + D_COMP_JAVA_CLASS, + /* A guard variable. */ + D_COMP_GUARD, + /* A reference temporary. */ + D_COMP_REFTEMP, + /* A standard substitution. */ + D_COMP_SUB_STD, + /* The restrict qualifier. */ + D_COMP_RESTRICT, + /* The volatile qualifier. */ + D_COMP_VOLATILE, + /* The const qualifier. */ + D_COMP_CONST, + /* The restrict qualifier modifying a member function. */ + D_COMP_RESTRICT_THIS, + /* The volatile qualifier modifying a member function. */ + D_COMP_VOLATILE_THIS, + /* The const qualifier modifying a member function. */ + D_COMP_CONST_THIS, + /* A vendor qualifier. */ + D_COMP_VENDOR_TYPE_QUAL, + /* A pointer. */ + D_COMP_POINTER, + /* A reference. */ + D_COMP_REFERENCE, + /* A complex type. */ + D_COMP_COMPLEX, + /* An imaginary type. */ + D_COMP_IMAGINARY, + /* A builtin type. */ + D_COMP_BUILTIN_TYPE, + /* A vendor's builtin type. */ + D_COMP_VENDOR_TYPE, + /* A function type. */ + D_COMP_FUNCTION_TYPE, + /* An array type. */ + D_COMP_ARRAY_TYPE, + /* A pointer to member type. */ + D_COMP_PTRMEM_TYPE, + /* An argument list. */ + D_COMP_ARGLIST, + /* A template argument list. */ + D_COMP_TEMPLATE_ARGLIST, + /* An operator. */ + D_COMP_OPERATOR, + /* An extended operator. */ + D_COMP_EXTENDED_OPERATOR, + /* A typecast. */ + D_COMP_CAST, + /* A unary expression. */ + D_COMP_UNARY, + /* A binary expression. */ + D_COMP_BINARY, + /* Arguments to a binary expression. */ + D_COMP_BINARY_ARGS, + /* A trinary expression. */ + D_COMP_TRINARY, + /* Arguments to a trinary expression. */ + D_COMP_TRINARY_ARG1, + D_COMP_TRINARY_ARG2, + /* A literal. */ + D_COMP_LITERAL, + /* A negative literal. */ + D_COMP_LITERAL_NEG +}; - /* Stack for strings containing demangled result generated so far. - Text is emitted to the topmost (first) string. */ - string_list_t result; +/* A component of the mangled name. */ - /* The number of presently available substitutions. */ - int num_substitutions; +struct d_comp +{ + /* The type of this component. */ + enum d_comp_type type; + union + { + /* For D_COMP_NAME. */ + struct + { + /* A pointer to the name (not NULL terminated) and it's + length. */ + const char *s; + int len; + } s_name; + + /* For D_COMP_OPERATOR. */ + struct + { + /* Operator. */ + const struct d_operator_info *op; + } s_operator; - /* The allocated size of the substitutions array. */ - int substitutions_allocated; + /* For D_COMP_EXTENDED_OPERATOR. */ + struct + { + /* Number of arguments. */ + int args; + /* Name. */ + struct d_comp *name; + } s_extended_operator; + + /* For D_COMP_CTOR. */ + struct + { + enum gnu_v3_ctor_kinds kind; + struct d_comp *name; + } s_ctor; - /* An array of available substitutions. The number of elements in - the array is given by num_substitions, and the allocated array - size in substitutions_size. + /* For D_COMP_DTOR. */ + struct + { + enum gnu_v3_dtor_kinds kind; + struct d_comp *name; + } s_dtor; - The most recent substition is at the end, so + /* For D_COMP_BUILTIN_TYPE. */ + struct + { + const struct d_builtin_type_info *type; + } s_builtin; - - `S_' corresponds to substititutions[num_substitutions - 1] - - `S0_' corresponds to substititutions[num_substitutions - 2] + /* For D_COMP_SUB_STD. */ + struct + { + const char* string; + int len; + } s_string; - etc. */ - struct substitution_def *substitutions; + /* For D_COMP_TEMPLATE_PARAM. */ + struct + { + long number; + } s_number; - /* The stack of template argument lists. */ - template_arg_list_t template_arg_lists; + /* For other types. */ + struct + { + struct d_comp *left; + struct d_comp *right; + } s_binary; - /* The most recently demangled source-name. */ - dyn_string_t last_source_name; + } u; }; -typedef struct demangling_def *demangling_t; - -/* This type is the standard return code from most functions. Values - other than STATUS_OK contain descriptive messages. */ -typedef const char *status_t; - -/* Special values that can be used as a status_t. */ -#define STATUS_OK NULL -#define STATUS_ERROR "Error." -#define STATUS_UNIMPLEMENTED "Unimplemented." -#define STATUS_INTERNAL_ERROR "Internal error." - -static void int_to_dyn_string - PARAMS ((int, dyn_string_t)); -static string_list_t string_list_new - PARAMS ((int)); -static void string_list_delete - PARAMS ((string_list_t)); -static void result_close_template_list - PARAMS ((demangling_t)); -static void result_push - PARAMS ((demangling_t)); -static string_list_t result_pop - PARAMS ((demangling_t)); -static int substitution_start - PARAMS ((demangling_t)); -static void substitution_add - PARAMS ((demangling_t, int, int, int)); -static dyn_string_t substitution_get - PARAMS ((demangling_t, int, int *)); -#ifdef CP_DEMANGLE_DEBUG -static void substitutions_print - PARAMS ((demangling_t, FILE *)); -#endif -static template_arg_list_t template_arg_list_new - PARAMS ((void)); -static void template_arg_list_delete - PARAMS ((template_arg_list_t)); -static void template_arg_list_add_arg - PARAMS ((template_arg_list_t, string_list_t)); -static string_list_t template_arg_list_get_arg - PARAMS ((template_arg_list_t, int)); -static void push_template_arg_list - PARAMS ((demangling_t, template_arg_list_t)); -static void pop_to_template_arg_list - PARAMS ((demangling_t, template_arg_list_t)); -#ifdef CP_DEMANGLE_DEBUG -static void template_arg_list_print - PARAMS ((template_arg_list_t, FILE *)); -#endif -static template_arg_list_t current_template_arg_list - PARAMS ((demangling_t)); -static demangling_t demangling_new - PARAMS ((char *)); -static void demangling_delete - PARAMS ((demangling_t)); - -/* The last character of DS. Warning: DS is evaluated twice. */ -#define dyn_string_last_char(DS) \ - (dyn_string_buf (DS)[dyn_string_length (DS) - 1]) - -/* Append a space character (` ') to DS if it does not already end - with one. */ -#define dyn_string_append_space(DS) \ - do \ - { \ - if (dyn_string_length (DS) > 0 \ - && dyn_string_last_char (DS) != ' ') \ - dyn_string_append_char ((DS), ' '); \ - } \ - while (0) - -/* Returns the index of the current position in the mangled name. */ -#define current_position(DM) ((DM)->next - (DM)->name) - -/* Returns the character at the current position of the mangled name. */ -#define peek_char(DM) (*((DM)->next)) - -/* Returns the character one past the current position of the mangled - name. */ -#define peek_char_next(DM) \ - (peek_char (DM) == '\0' ? '\0' : (*((DM)->next + 1))) - -/* Returns the character at the current position, and advances the - current position to the next character. */ -#define next_char(DM) (*((DM)->next)++) - -/* Returns non-zero if the current position is the end of the mangled - name, i.e. one past the last character. */ -#define end_of_name_p(DM) (peek_char (DM) == '\0') - -/* Advances the current position by one character. */ -#define advance_char(DM) (++(DM)->next) - -/* Returns the string containing the current demangled result. */ -#define result_string(DM) (&(DM)->result->string) - -/* Appends a dyn_string_t to the demangled result. */ -#define result_append_string(DM, STRING) \ - dyn_string_append (&(DM)->result->string, (STRING)) - -/* Appends NUL-terminated string CSTR to the demangled result. */ -#define result_append(DM, CSTR) \ - dyn_string_append_cstr (&(DM)->result->string, (CSTR)) - -/* Appends character CHAR to the demangled result. */ -#define result_append_char(DM, CHAR) \ - dyn_string_append_char (&(DM)->result->string, (CHAR)) - -/* The length of the current demangled result. */ -#define result_length(DM) \ - dyn_string_length (&(DM)->result->string) - -/* Appends a space to the demangled result if the last character is - not a space. */ -#define result_append_space(DM) \ - dyn_string_append_space (&(DM)->result->string) - -/* Evaluate EXPR, which must produce a status_t. If the status code - indicates an error, return from the current function with that - status code. */ -#define RETURN_IF_ERROR(EXPR) \ - do \ - { \ - status_t s = EXPR; \ - if (s != STATUS_OK) \ - return s; \ - } \ - while (0) +#define d_left(dc) ((dc)->u.s_binary.left) +#define d_right(dc) ((dc)->u.s_binary.right) -/* Appends a base 10 representation of VALUE to DS. */ +/* The information structure we pass around. */ -static void -int_to_dyn_string (value, ds) - int value; - dyn_string_t ds; +struct d_info { - int i; - int mask = 1; - - /* Handle zero up front. */ - if (value == 0) - { - dyn_string_append_char (ds, '0'); - return; - } - - /* For negative numbers, emit a minus sign. */ - if (value < 0) - { - dyn_string_append_char (ds, '-'); - value = -value; - } - - /* Find the power of 10 of the first digit. */ - i = value; - while (i > 9) - { - mask *= 10; - i /= 10; - } + /* The string we are demangling. */ + const char *s; + /* The end of the string we are demangling. */ + const char *send; + /* The options passed to the demangler. */ + int options; + /* The next character in the string to consider. */ + const char *n; + /* The array of components. */ + struct d_comp *comps; + /* The index of the next available component. */ + int next_comp; + /* The number of available component structures. */ + int num_comps; + /* The array of substitutions. */ + struct d_comp **subs; + /* The index of the next substitution. */ + int next_sub; + /* The number of available entries in the subs array. */ + int num_subs; + /* The number of substitutions which we actually made from the subs + array, plus the number of template parameter references we + saw. */ + int did_subs; + /* The last name we saw, for constructors and destructors. */ + struct d_comp *last_name; + /* A running total of the length of large expansions from the + mangled name to the demangled name, such as standard + substitutions and builtin types. */ + int expansion; +}; - /* Write the digits. */ - while (mask > 0) - { - int digit = value / mask; - dyn_string_append_char (ds, '0' + digit); - value -= digit * mask; - mask /= 10; - } -} +#define d_peek_char(di) (*((di)->n)) +#define d_peek_next_char(di) ((di)->n[1]) +#define d_advance(di, i) ((di)->n += (i)) +#define d_next_char(di) (*((di)->n++)) +#define d_str(di) ((di)->n) -/* Creates a new string list node. The contents of the string are - empty, but the initial buffer allocation is LENGTH. The string - list node should be deleted with string_list_delete. */ +/* A list of templates. This is used while printing. */ -static string_list_t -string_list_new (length) - int length; +struct d_print_template { - string_list_t s = - (string_list_t) xmalloc (sizeof (struct string_list_def)); - dyn_string_init ((dyn_string_t) s, length); - return s; -} + /* Next template on the list. */ + struct d_print_template *next; + /* This template. */ + const struct d_comp *template; +}; -/* Deletes the entire string list starting at NODE. */ +/* A list of type modifiers. This is used while printing. */ -static void -string_list_delete (node) - string_list_t node; +struct d_print_mod { - while (node != NULL) - { - string_list_t next = node->next; - free (node); - node = next; - } -} + /* Next modifier on the list. These are in the reverse of the order + in which they appeared in the mangled string. */ + struct d_print_mod *next; + /* The modifier. */ + const struct d_comp *mod; + /* Whether this modifier was printed. */ + int printed; + /* The list of templates which applies to this modifier. */ + struct d_print_template *templates; +}; -/* Appends a greater-than character to the demangled result. If the - last character is a greater-than character, a space is inserted - first, so that the two greater-than characters don't look like a - right shift token. */ +/* We use this structure to hold information during printing. */ -static void -result_close_template_list (dm) - demangling_t dm; +struct d_print_info { - dyn_string_t s = &dm->result->string; - if (dyn_string_last_char (s) == '>') - dyn_string_append_char (s, ' '); - dyn_string_append_char (s, '>'); -} - -/* Allocates and pushes a new string onto the demangled results stack - for DM. Subsequent demangling with DM will emit to the new string. */ + /* The options passed to the demangler. */ + int options; + /* Buffer holding the result. */ + char *buf; + /* Current length of data in buffer. */ + size_t len; + /* Allocated size of buffer. */ + size_t alc; + /* The current list of templates, if any. */ + struct d_print_template *templates; + /* The current list of modifiers (e.g., pointer, reference, etc.), + if any. */ + struct d_print_mod *modifiers; + /* Set to 1 if we had a memory allocation failure. */ + int allocation_failure; +}; -static void -result_push (dm) - demangling_t dm; -{ - string_list_t new_string = string_list_new (0); - new_string->next = (string_list_t) dm->result; - dm->result = new_string; -} +#define d_print_saw_error(dpi) ((dpi)->buf == NULL) -/* Removes and returns the topmost element on the demangled results - stack for DM. The caller assumes ownership for the returned - string. */ +#define d_append_char(dpi, c) \ + do \ + { \ + if ((dpi)->buf != NULL && (dpi)->len < (dpi)->alc) \ + (dpi)->buf[(dpi)->len++] = (c); \ + else \ + d_print_append_char ((dpi), (c)); \ + } \ + while (0) -static string_list_t -result_pop (dm) - demangling_t dm; -{ - string_list_t top = dm->result; - dm->result = top->next; - return top; -} +#define d_append_buffer(dpi, s, l) \ + do \ + { \ + if ((dpi)->buf != NULL && (dpi)->len + (l) <= (dpi)->alc) \ + { \ + memcpy ((dpi)->buf + (dpi)->len, (s), (l)); \ + (dpi)->len += l; \ + } \ + else \ + d_print_append_buffer ((dpi), (s), (l)); \ + } \ + while (0) -/* Returns the start position of a fragment of the demangled result - that will be a substitution candidate. Should be called at the - start of productions that can add substitutions. */ +#define d_append_string_constant(dpi, s) \ + d_append_buffer (dpi, (s), sizeof (s) - 1) -static int -substitution_start (dm) - demangling_t dm; -{ - return result_length (dm); -} +#define d_last_char(dpi) \ + ((dpi)->buf == NULL || (dpi)->len == 0 ? '\0' : (dpi)->buf[(dpi)->len - 1]) -/* Adds the suffix of the current demangled result of DM starting at - START_POSITION as a potential substitution. If TEMPLATE_P is - non-zero, this potential substitution is a template-id. +#ifdef CP_DEMANGLE_DEBUG +static void d_dump PARAMS ((struct d_comp *, int)); +#endif +static struct d_comp *d_make_empty PARAMS ((struct d_info *, + enum d_comp_type)); +static struct d_comp *d_make_comp PARAMS ((struct d_info *, enum d_comp_type, + struct d_comp *, struct d_comp *)); +static struct d_comp *d_make_name PARAMS ((struct d_info *, const char *, + int)); +static struct d_comp *d_make_builtin_type PARAMS ((struct d_info *, + const struct d_builtin_type_info *)); +static struct d_comp *d_make_operator PARAMS ((struct d_info *, + const struct d_operator_info *)); +static struct d_comp *d_make_extended_operator PARAMS ((struct d_info *, + int, + struct d_comp *)); +static struct d_comp *d_make_ctor PARAMS ((struct d_info *, + enum gnu_v3_ctor_kinds, + struct d_comp *)); +static struct d_comp *d_make_dtor PARAMS ((struct d_info *, + enum gnu_v3_dtor_kinds, + struct d_comp *)); +static struct d_comp *d_make_template_param PARAMS ((struct d_info *, long)); +static struct d_comp *d_make_sub PARAMS ((struct d_info *, const char *, int)); +static struct d_comp *d_mangled_name PARAMS ((struct d_info *, int)); +static int has_return_type PARAMS ((struct d_comp *)); +static int is_ctor_dtor_or_conversion PARAMS ((struct d_comp *)); +static struct d_comp *d_encoding PARAMS ((struct d_info *, int)); +static struct d_comp *d_name PARAMS ((struct d_info *)); +static struct d_comp *d_nested_name PARAMS ((struct d_info *)); +static struct d_comp *d_prefix PARAMS ((struct d_info *)); +static struct d_comp *d_unqualified_name PARAMS ((struct d_info *)); +static struct d_comp *d_source_name PARAMS ((struct d_info *)); +static long d_number PARAMS ((struct d_info *)); +static struct d_comp *d_identifier PARAMS ((struct d_info *, int)); +static struct d_comp *d_operator_name PARAMS ((struct d_info *)); +static struct d_comp *d_special_name PARAMS ((struct d_info *)); +static int d_call_offset PARAMS ((struct d_info *, int)); +static struct d_comp *d_ctor_dtor_name PARAMS ((struct d_info *)); +static struct d_comp *d_type PARAMS ((struct d_info *)); +static struct d_comp **d_cv_qualifiers PARAMS ((struct d_info *, + struct d_comp **, int)); +static struct d_comp *d_function_type PARAMS ((struct d_info *)); +static struct d_comp *d_bare_function_type PARAMS ((struct d_info *, int)); +static struct d_comp *d_class_enum_type PARAMS ((struct d_info *)); +static struct d_comp *d_array_type PARAMS ((struct d_info *)); +static struct d_comp *d_pointer_to_member_type PARAMS ((struct d_info *)); +static struct d_comp *d_template_param PARAMS ((struct d_info *)); +static struct d_comp *d_template_args PARAMS ((struct d_info *)); +static struct d_comp *d_template_arg PARAMS ((struct d_info *)); +static struct d_comp *d_expression PARAMS ((struct d_info *)); +static struct d_comp *d_expr_primary PARAMS ((struct d_info *)); +static struct d_comp *d_local_name PARAMS ((struct d_info *)); +static int d_discriminator PARAMS ((struct d_info *)); +static int d_add_substitution PARAMS ((struct d_info *, struct d_comp *)); +static struct d_comp *d_substitution PARAMS ((struct d_info *, int)); +static void d_print_resize PARAMS ((struct d_print_info *, size_t)); +static void d_print_append_char PARAMS ((struct d_print_info *, int)); +static void d_print_append_buffer PARAMS ((struct d_print_info *, const char *, + size_t)); +static void d_print_error PARAMS ((struct d_print_info *)); +static char *d_print PARAMS ((int, const struct d_comp *, int, size_t *)); +static void d_print_comp PARAMS ((struct d_print_info *, + const struct d_comp *)); +static void d_print_java_identifier PARAMS ((struct d_print_info *, + const char *, int)); +static void d_print_mod_list PARAMS ((struct d_print_info *, + struct d_print_mod *, int)); +static void d_print_mod PARAMS ((struct d_print_info *, + const struct d_comp *)); +static void d_print_function_type PARAMS ((struct d_print_info *, + const struct d_comp *, + struct d_print_mod *)); +static void d_print_array_type PARAMS ((struct d_print_info *, + const struct d_comp *, + struct d_print_mod *)); +static void d_print_expr_op PARAMS ((struct d_print_info *, + const struct d_comp *)); +static void d_print_cast PARAMS ((struct d_print_info *, + const struct d_comp *)); +static void d_init_info PARAMS ((const char *, int, size_t, struct d_info *)); +static char *d_demangle PARAMS ((const char *, int, size_t *)); - If TEMPLATE_PARM_NUMBER is not NOT_TEMPLATE_PARM, the substitution - is for that particular , and is distinct from other - otherwise-identical types and other s with - different indices. */ +#ifdef CP_DEMANGLE_DEBUG static void -substitution_add (dm, start_position, template_p, template_parm_number) - demangling_t dm; - int start_position; - int template_p; - int template_parm_number; -{ - dyn_string_t result = result_string (dm); - dyn_string_t substitution = dyn_string_new (0); +d_dump (dc, indent) + struct d_comp *dc; + int indent; +{ int i; - dyn_string_substring (substitution, - result, start_position, result_length (dm)); + if (dc == NULL) + return; - /* Check whether SUBSTITUTION already occurs. */ - for (i = 0; i < dm->num_substitutions; ++i) - if (dyn_string_eq (dm->substitutions[i].text, substitution) - && dm->substitutions[i].template_parm_number == template_parm_number) - /* Found SUBSTITUTION already present. */ - { - /* Callers expect this function to take ownership of - SUBSTITUTION, so delete it. */ - dyn_string_delete (substitution); - return; - } + for (i = 0; i < indent; ++i) + putchar (' '); - /* If there's no room for the new entry, grow the array. */ - if (dm->substitutions_allocated == dm->num_substitutions) + switch (dc->type) { - dm->substitutions_allocated *= 2; - dm->substitutions = (struct substitution_def *) - xrealloc (dm->substitutions, - sizeof (struct substitution_def) - * dm->substitutions_allocated); - } + case D_COMP_NAME: + printf ("name '%.*s'\n", dc->u.s_name.len, dc->u.s_name.s); + return; + case D_COMP_TEMPLATE_PARAM: + printf ("template parameter %ld\n", dc->u.s_number.number); + return; + case D_COMP_CTOR: + printf ("constructor %d\n", (int) dc->u.s_ctor.kind); + d_dump (dc->u.s_ctor.name, indent + 2); + return; + case D_COMP_DTOR: + printf ("destructor %d\n", (int) dc->u.s_dtor.kind); + d_dump (dc->u.s_dtor.name, indent + 2); + return; + case D_COMP_SUB_STD: + printf ("standard substitution %s\n", dc->u.s_string.string); + return; + case D_COMP_BUILTIN_TYPE: + printf ("builtin type %s\n", dc->u.s_builtin.type->name); + return; + case D_COMP_OPERATOR: + printf ("operator %s\n", dc->u.s_operator.op->name); + return; + case D_COMP_EXTENDED_OPERATOR: + printf ("extended operator with %d args\n", + dc->u.s_extended_operator.args); + d_dump (dc->u.s_extended_operator.name, indent + 2); + return; - /* Add the substitution to the array. */ - dm->substitutions[i].text = substitution; - dm->substitutions[i].template_p = template_p; - dm->substitutions[i].template_parm_number = template_parm_number; - ++dm->num_substitutions; + case D_COMP_QUAL_NAME: + printf ("qualified name\n"); + break; + case D_COMP_LOCAL_NAME: + printf ("local name\n"); + break; + case D_COMP_TYPED_NAME: + printf ("typed name\n"); + break; + case D_COMP_TEMPLATE: + printf ("template\n"); + break; + case D_COMP_VTABLE: + printf ("vtable\n"); + break; + case D_COMP_VTT: + printf ("VTT\n"); + break; + case D_COMP_CONSTRUCTION_VTABLE: + printf ("construction vtable\n"); + break; + case D_COMP_TYPEINFO: + printf ("typeinfo\n"); + break; + case D_COMP_TYPEINFO_NAME: + printf ("typeinfo name\n"); + break; + case D_COMP_TYPEINFO_FN: + printf ("typeinfo function\n"); + break; + case D_COMP_THUNK: + printf ("thunk\n"); + break; + case D_COMP_VIRTUAL_THUNK: + printf ("virtual thunk\n"); + break; + case D_COMP_COVARIANT_THUNK: + printf ("covariant thunk\n"); + break; + case D_COMP_JAVA_CLASS: + printf ("java class\n"); + break; + case D_COMP_GUARD: + printf ("guard\n"); + break; + case D_COMP_REFTEMP: + printf ("reference temporary\n"); + break; + case D_COMP_RESTRICT: + printf ("restrict\n"); + break; + case D_COMP_VOLATILE: + printf ("volatile\n"); + break; + case D_COMP_CONST: + printf ("const\n"); + break; + case D_COMP_RESTRICT_THIS: + printf ("restrict this\n"); + break; + case D_COMP_VOLATILE_THIS: + printf ("volatile this\n"); + break; + case D_COMP_CONST_THIS: + printf ("const this\n"); + break; + case D_COMP_VENDOR_TYPE_QUAL: + printf ("vendor type qualifier\n"); + break; + case D_COMP_POINTER: + printf ("pointer\n"); + break; + case D_COMP_REFERENCE: + printf ("reference\n"); + break; + case D_COMP_COMPLEX: + printf ("complex\n"); + break; + case D_COMP_IMAGINARY: + printf ("imaginary\n"); + break; + case D_COMP_VENDOR_TYPE: + printf ("vendor type\n"); + break; + case D_COMP_FUNCTION_TYPE: + printf ("function type\n"); + break; + case D_COMP_ARRAY_TYPE: + printf ("array type\n"); + break; + case D_COMP_PTRMEM_TYPE: + printf ("pointer to member type\n"); + break; + case D_COMP_ARGLIST: + printf ("argument list\n"); + break; + case D_COMP_TEMPLATE_ARGLIST: + printf ("template argument list\n"); + break; + case D_COMP_CAST: + printf ("cast\n"); + break; + case D_COMP_UNARY: + printf ("unary operator\n"); + break; + case D_COMP_BINARY: + printf ("binary operator\n"); + break; + case D_COMP_BINARY_ARGS: + printf ("binary operator arguments\n"); + break; + case D_COMP_TRINARY: + printf ("trinary operator\n"); + break; + case D_COMP_TRINARY_ARG1: + printf ("trinary operator arguments 1\n"); + break; + case D_COMP_TRINARY_ARG2: + printf ("trinary operator arguments 1\n"); + break; + case D_COMP_LITERAL: + printf ("literal\n"); + break; + case D_COMP_LITERAL_NEG: + printf ("negative literal\n"); + break; + } -#ifdef CP_DEMANGLE_DEBUG - substitutions_print (dm, stderr); -#endif + d_dump (d_left (dc), indent + 2); + d_dump (d_right (dc), indent + 2); } -/* Returns the Nth-most-recent substitution. Sets *TEMPLATE_P to - non-zero if the substitution is a template-id, zero otherwise. - N is numbered from zero. DM retains ownership of the returned - string. If N is negative, or equal to or greater than the current - number of substitution candidates, returns NULL. */ +#endif /* CP_DEMANGLE_DEBUG */ + +/* Add a new component. */ -static dyn_string_t -substitution_get (dm, n, template_p) - demangling_t dm; - int n; - int *template_p; +static struct d_comp * +d_make_empty (di, type) + struct d_info *di; + enum d_comp_type type; { - struct substitution_def *sub; + struct d_comp *p; - /* Make sure N is in the valid range. */ - if (n < 0 || n >= dm->num_substitutions) + if (di->next_comp >= di->num_comps) return NULL; - - sub = &(dm->substitutions[n]); - *template_p = sub->template_p; - return sub->text; + p = &di->comps[di->next_comp]; + p->type = type; + ++di->next_comp; + return p; } -#ifdef CP_DEMANGLE_DEBUG -/* Debugging routine to print the current substitutions to FP. */ +/* Add a new generic component. */ -static void -substitutions_print (dm, fp) - demangling_t dm; - FILE *fp; +static struct d_comp * +d_make_comp (di, type, left, right) + struct d_info *di; + enum d_comp_type type; + struct d_comp *left; + struct d_comp *right; { - int seq_id; - int num = dm->num_substitutions; + struct d_comp *p; - fprintf (fp, "SUBSTITUTIONS:\n"); - for (seq_id = -1; seq_id < num - 1; ++seq_id) + /* We check for errors here. A typical error would be a NULL return + from a subroutine. We catch those here, and return NULL + upward. */ + switch (type) { - int template_p; - dyn_string_t text = substitution_get (dm, seq_id + 1, &template_p); + /* These types require two parameters. */ + case D_COMP_QUAL_NAME: + case D_COMP_LOCAL_NAME: + case D_COMP_TYPED_NAME: + case D_COMP_TEMPLATE: + case D_COMP_VENDOR_TYPE_QUAL: + case D_COMP_PTRMEM_TYPE: + case D_COMP_UNARY: + case D_COMP_BINARY: + case D_COMP_BINARY_ARGS: + case D_COMP_TRINARY: + case D_COMP_TRINARY_ARG1: + case D_COMP_TRINARY_ARG2: + case D_COMP_LITERAL: + case D_COMP_LITERAL_NEG: + if (left == NULL || right == NULL) + return NULL; + break; - if (seq_id == -1) - fprintf (fp, " S_ "); - else - fprintf (fp, " S%d_", seq_id); - fprintf (fp, " %c: %s\n", template_p ? '*' : ' ', dyn_string_buf (text)); - } -} + /* These types only require one parameter. */ + case D_COMP_VTABLE: + case D_COMP_VTT: + case D_COMP_CONSTRUCTION_VTABLE: + case D_COMP_TYPEINFO: + case D_COMP_TYPEINFO_NAME: + case D_COMP_TYPEINFO_FN: + case D_COMP_THUNK: + case D_COMP_VIRTUAL_THUNK: + case D_COMP_COVARIANT_THUNK: + case D_COMP_JAVA_CLASS: + case D_COMP_GUARD: + case D_COMP_REFTEMP: + case D_COMP_POINTER: + case D_COMP_REFERENCE: + case D_COMP_COMPLEX: + case D_COMP_IMAGINARY: + case D_COMP_VENDOR_TYPE: + case D_COMP_ARGLIST: + case D_COMP_TEMPLATE_ARGLIST: + case D_COMP_CAST: + if (left == NULL) + return NULL; + break; -#endif /* CP_DEMANGLE_DEBUG */ + /* This needs a right parameter, but the left parameter can be + empty. */ + case D_COMP_ARRAY_TYPE: + if (right == NULL) + return NULL; + break; -/* Creates a new template argument list. */ + /* These are allowed to have no parameters--in some cases they + will be filled in later. */ + case D_COMP_FUNCTION_TYPE: + case D_COMP_RESTRICT: + case D_COMP_VOLATILE: + case D_COMP_CONST: + case D_COMP_RESTRICT_THIS: + case D_COMP_VOLATILE_THIS: + case D_COMP_CONST_THIS: + break; -static template_arg_list_t -template_arg_list_new PARAMS((void)) -{ - template_arg_list_t new_list - = (template_arg_list_t) xmalloc (sizeof (struct template_arg_list_def)); - /* Initialize the new list to have no arguments. */ - new_list->first_argument = NULL; - new_list->last_argument = NULL; - /* Return the new list. */ - return new_list; + /* Other types should not be seen here. */ + default: + return NULL; + } + + p = d_make_empty (di, type); + if (p != NULL) + { + p->u.s_binary.left = left; + p->u.s_binary.right = right; + } + return p; } -/* Deletes a template argument list and the template arguments it - contains. */ +/* Add a new name component. */ -static void -template_arg_list_delete (list) - template_arg_list_t list; +static struct d_comp * +d_make_name (di, s, len) + struct d_info *di; + const char *s; + int len; { - /* If there are any arguments on LIST, delete them. */ - if (list->first_argument != NULL) - string_list_delete (list->first_argument); - /* Delete LIST. */ - free (list); + struct d_comp *p; + + if (s == NULL || len == 0) + return NULL; + p = d_make_empty (di, D_COMP_NAME); + if (p != NULL) + { + p->u.s_name.s = s; + p->u.s_name.len = len; + } + return p; } -/* Adds ARG to the template argument list ARG_LIST. */ +/* Add a new builtin type component. */ -static void -template_arg_list_add_arg (arg_list, arg) - template_arg_list_t arg_list; - string_list_t arg; +static struct d_comp * +d_make_builtin_type (di, type) + struct d_info *di; + const struct d_builtin_type_info *type; { - if (arg_list->first_argument == NULL) - /* If there were no arguments before, ARG is the first one. */ - arg_list->first_argument = arg; - else - /* Make ARG the last argument on the list. */ - arg_list->last_argument->next = arg; - /* Make ARG the last on the list. */ - arg_list->last_argument = arg; - arg->next = NULL; -} - -/* Returns the template arugment at position INDEX in template - argument list ARG_LIST. */ - -static string_list_t -template_arg_list_get_arg (arg_list, index) - template_arg_list_t arg_list; - int index; -{ - string_list_t arg = arg_list->first_argument; - /* Scan down the list of arguments to find the one at position - INDEX. */ - while (index--) - { - arg = arg->next; - if (arg == NULL) - /* Ran out of arguments before INDEX hit zero. That's an - error. */ - return NULL; - } - /* Return the argument at position INDEX. */ - return arg; + struct d_comp *p; + + if (type == NULL) + return NULL; + p = d_make_empty (di, D_COMP_BUILTIN_TYPE); + if (p != NULL) + p->u.s_builtin.type = type; + return p; } -/* Pushes ARG_LIST onto the top of the template argument list stack. */ +/* Add a new operator component. */ -static void -push_template_arg_list (dm, arg_list) - demangling_t dm; - template_arg_list_t arg_list; +static struct d_comp * +d_make_operator (di, op) + struct d_info *di; + const struct d_operator_info *op; { - arg_list->next = dm->template_arg_lists; - dm->template_arg_lists = arg_list; -#ifdef CP_DEMANGLE_DEBUG - fprintf (stderr, " ** pushing template arg list\n"); - template_arg_list_print (arg_list, stderr); -#endif + struct d_comp *p; + + p = d_make_empty (di, D_COMP_OPERATOR); + if (p != NULL) + p->u.s_operator.op = op; + return p; } -/* Pops and deletes elements on the template argument list stack until - arg_list is the topmost element. If arg_list is NULL, all elements - are popped and deleted. */ +/* Add a new extended operator component. */ -static void -pop_to_template_arg_list (dm, arg_list) - demangling_t dm; - template_arg_list_t arg_list; +static struct d_comp * +d_make_extended_operator (di, args, name) + struct d_info *di; + int args; + struct d_comp *name; { - while (dm->template_arg_lists != arg_list) + struct d_comp *p; + + if (name == NULL) + return NULL; + p = d_make_empty (di, D_COMP_EXTENDED_OPERATOR); + if (p != NULL) { - template_arg_list_t top = dm->template_arg_lists; - /* Disconnect the topmost element from the list. */ - dm->template_arg_lists = top->next; - /* Delete the popped element. */ - template_arg_list_delete (top); -#ifdef CP_DEMANGLE_DEBUG - fprintf (stderr, " ** removing template arg list\n"); -#endif + p->u.s_extended_operator.args = args; + p->u.s_extended_operator.name = name; } + return p; } -#ifdef CP_DEMANGLE_DEBUG - -/* Prints the contents of ARG_LIST to FP. */ +/* Add a new constructor component. */ -static void -template_arg_list_print (arg_list, fp) - template_arg_list_t arg_list; - FILE *fp; +static struct d_comp * +d_make_ctor (di, kind, name) + struct d_info *di; + enum gnu_v3_ctor_kinds kind; + struct d_comp *name; { - string_list_t arg; - int index = -1; + struct d_comp *p; - fprintf (fp, "TEMPLATE ARGUMENT LIST:\n"); - for (arg = arg_list->first_argument; arg != NULL; arg = arg->next) + if (name == NULL) + return NULL; + p = d_make_empty (di, D_COMP_CTOR); + if (p != NULL) { - if (index == -1) - fprintf (fp, " T_ : "); - else - fprintf (fp, " T%d_ : ", index); - ++index; - fprintf (fp, "%s\n", dyn_string_buf ((dyn_string_t) arg)); + p->u.s_ctor.kind = kind; + p->u.s_ctor.name = name; } + return p; } -#endif /* CP_DEMANGLE_DEBUG */ - -/* Returns the topmost element on the stack of template argument - lists. If there is no list of template arguments, returns NULL. */ +/* Add a new destructor component. */ -static template_arg_list_t -current_template_arg_list (dm) - demangling_t dm; +static struct d_comp * +d_make_dtor (di, kind, name) + struct d_info *di; + enum gnu_v3_dtor_kinds kind; + struct d_comp *name; { - return dm->template_arg_lists; + struct d_comp *p; + + if (name == NULL) + return NULL; + p = d_make_empty (di, D_COMP_DTOR); + if (p != NULL) + { + p->u.s_dtor.kind = kind; + p->u.s_dtor.name = name; + } + return p; } -/* Allocates a demangling_t object for demangling mangled NAME. A new - result must be pushed before the returned object can be used. */ +/* Add a new template parameter. */ -static demangling_t -demangling_new (name) - char *name; +static struct d_comp * +d_make_template_param (di, i) + struct d_info *di; + long i; { - demangling_t dm = (demangling_t) - xmalloc (sizeof (struct demangling_def)); - - dm->name = name; - dm->next = name; - dm->result = NULL; - dm->last_source_name = dyn_string_new (0); - dm->num_substitutions = 0; - dm->substitutions_allocated = 10; - dm->substitutions = (struct substitution_def *) - xmalloc (dm->substitutions_allocated * sizeof (struct substitution_def)); - dm->template_arg_lists = NULL; + struct d_comp *p; - return dm; + p = d_make_empty (di, D_COMP_TEMPLATE_PARAM); + if (p != NULL) + p->u.s_number.number = i; + return p; } -/* Deallocates a demangling_t object and all memory associated with - it. */ +/* Add a new standard substitution component. */ -static void -demangling_delete (dm) - demangling_t dm; -{ - int i; - template_arg_list_t arg_list = dm->template_arg_lists; - - /* Delete the stack of template argument lists. */ - while (arg_list != NULL) - { - template_arg_list_t next = arg_list->next; - template_arg_list_delete (arg_list); - arg_list = next; - } - /* Delete the list of substitutions. */ - for (i = dm->num_substitutions; --i >= 0; ) - dyn_string_delete (dm->substitutions[i].text); - free (dm->substitutions); - /* Delete the demangled result. */ - string_list_delete (dm->result); - /* Delete the stored identifier name. */ - dyn_string_delete (dm->last_source_name); - /* Delete the context object itself. */ - free (dm); -} - -/* These functions demangle an alternative of the corresponding - production in the mangling spec. The first argument of each is a - demangling context structure for the current demangling - operation. Most emit demangled text directly to the topmost result - string on the result string stack in the demangling context - structure. */ - -static status_t demangle_char - PARAMS ((demangling_t, int)); -static status_t demangle_mangled_name - PARAMS ((demangling_t)); -static status_t demangle_encoding - PARAMS ((demangling_t)); -static status_t demangle_name - PARAMS ((demangling_t, int *)); -static status_t demangle_nested_name - PARAMS ((demangling_t, int *)); -static status_t demangle_prefix - PARAMS ((demangling_t, int *)); -static status_t demangle_unqualified_name - PARAMS ((demangling_t)); -static status_t demangle_source_name - PARAMS ((demangling_t)); -static status_t demangle_number - PARAMS ((demangling_t, int *, int, int)); -static status_t demangle_number_literally - PARAMS ((demangling_t, dyn_string_t, int, int)); -static status_t demangle_identifier - PARAMS ((demangling_t, int, dyn_string_t)); -static status_t demangle_operator_name - PARAMS ((demangling_t, int, int *)); -static status_t demangle_special_name - PARAMS ((demangling_t)); -static status_t demangle_ctor_dtor_name - PARAMS ((demangling_t)); -static status_t demangle_type_ptr - PARAMS ((demangling_t)); -static status_t demangle_type - PARAMS ((demangling_t)); -static status_t demangle_CV_qualifiers - PARAMS ((demangling_t, dyn_string_t)); -static status_t demangle_builtin_type - PARAMS ((demangling_t)); -static status_t demangle_function_type - PARAMS ((demangling_t, int)); -static status_t demangle_bare_function_type - PARAMS ((demangling_t, int)); -static status_t demangle_class_enum_type - PARAMS ((demangling_t, int *)); -static status_t demangle_array_type - PARAMS ((demangling_t)); -static status_t demangle_template_param - PARAMS ((demangling_t, int *)); -static status_t demangle_template_args - PARAMS ((demangling_t)); -static status_t demangle_literal - PARAMS ((demangling_t)); -static status_t demangle_template_arg - PARAMS ((demangling_t)); -static status_t demangle_expression - PARAMS ((demangling_t)); -static status_t demangle_scope_expression - PARAMS ((demangling_t)); -static status_t demangle_expr_primary - PARAMS ((demangling_t)); -static status_t demangle_substitution - PARAMS ((demangling_t, int *, int *)); -static status_t demangle_local_name - PARAMS ((demangling_t)); -static status_t demangle_discriminator - PARAMS ((demangling_t, int)); -static status_t cp_demangle - PARAMS ((char *, dyn_string_t)); - -/* When passed to demangle_bare_function_type, indicates that the - function's return type is not encoded before its parameter types. */ -#define BFT_NO_RETURN_TYPE -1 - -/* Check that the next character is C. If so, consume it. If not, - return an error. */ - -static status_t -demangle_char (dm, c) - demangling_t dm; - int c; +static struct d_comp * +d_make_sub (di, name, len) + struct d_info *di; + const char *name; + int len; { - static char *error_message = NULL; + struct d_comp *p; - if (peek_char (dm) == c) - { - advance_char (dm); - return STATUS_OK; - } - else + p = d_make_empty (di, D_COMP_SUB_STD); + if (p != NULL) { - if (error_message == NULL) - error_message = strdup ("Expected ?"); - error_message[9] = c; - return error_message; + p->u.s_string.string = name; + p->u.s_string.len = len; } + return p; } -/* Demangles and emits a . +/* ::= _Z - ::= _Z */ + TOP_LEVEL is non-zero when called at the top level. */ -static status_t -demangle_mangled_name (dm) - demangling_t dm; +static struct d_comp * +d_mangled_name (di, top_level) + struct d_info *di; + int top_level; { - DEMANGLE_TRACE ("mangled-name", dm); - RETURN_IF_ERROR (demangle_char (dm, '_')); - RETURN_IF_ERROR (demangle_char (dm, 'Z')); - RETURN_IF_ERROR (demangle_encoding (dm)); - return STATUS_OK; + if (d_next_char (di) != '_') + return NULL; + if (d_next_char (di) != 'Z') + return NULL; + return d_encoding (di, top_level); } -/* Demangles and emits an . - - ::= - ::= - ::= */ +/* Return whether a function should have a return type. The argument + is the function name, which may be qualified in various ways. The + rules are that template functions have return types with some + exceptions, function types which are not part of a function name + mangling have return types with some exceptions, and non-template + function names do not have return types. The exceptions are that + constructors, destructors, and conversion operators do not have + return types. */ -static status_t -demangle_encoding (dm) - demangling_t dm; +static int +has_return_type (dc) + struct d_comp *dc; { - int template_p; - int special_std_substitution; - int start_position; - int start = substitution_start (dm); - template_arg_list_t old_arg_list = current_template_arg_list (dm); - char peek = peek_char (dm); - - DEMANGLE_TRACE ("encoding", dm); - - /* Remember where the name starts. If it turns out to be a template - function, we'll have to insert the return type here. */ - start_position = result_length (dm); - - if (peek == 'S') + if (dc == NULL) + return 0; + switch (dc->type) { - RETURN_IF_ERROR (demangle_substitution (dm, &template_p, - &special_std_substitution)); - if (special_std_substitution) - { - /* This was the magic `std::' substitution. */ - result_append (dm, "::"); - RETURN_IF_ERROR (demangle_encoding (dm)); - } + default: + return 0; + case D_COMP_TEMPLATE: + return ! is_ctor_dtor_or_conversion (d_left (dc)); + case D_COMP_RESTRICT_THIS: + case D_COMP_VOLATILE_THIS: + case D_COMP_CONST_THIS: + return has_return_type (d_left (dc)); } - else if (peek == 'G' || peek == 'T') - RETURN_IF_ERROR (demangle_special_name (dm)); - else - { - /* Now demangle the name. */ - RETURN_IF_ERROR (demangle_name (dm, &template_p)); +} - /* If there's anything left, the name was a function name, with - maybe its return type, and its parameters types, following. */ - if (!end_of_name_p (dm) - && peek_char (dm) != 'E') - { - if (template_p) - /* Template functions have their return type encoded. The - return type should be inserted at start_position. */ - RETURN_IF_ERROR - (demangle_bare_function_type (dm, start_position)); - else - /* Non-template functions don't have their return type - encoded. */ - RETURN_IF_ERROR - (demangle_bare_function_type (dm, BFT_NO_RETURN_TYPE)); - } +/* Return whether a name is a constructor, a destructor, or a + conversion operator. */ - substitution_add (dm, start, template_p, NOT_TEMPLATE_PARM); +static int +is_ctor_dtor_or_conversion (dc) + struct d_comp *dc; +{ + if (dc == NULL) + return 0; + switch (dc->type) + { + default: + return 0; + case D_COMP_QUAL_NAME: + case D_COMP_LOCAL_NAME: + return is_ctor_dtor_or_conversion (d_right (dc)); + case D_COMP_CTOR: + case D_COMP_DTOR: + case D_COMP_CAST: + return 1; } - - /* Pop off template argument lists that were built during the - mangling of this name, to restore the old template context. */ - pop_to_template_arg_list (dm, old_arg_list); - - return STATUS_OK; } -/* Demangles and emits a . - - ::= - ::= - ::= - ::= - - ::= - ::= St # ::std:: +/* ::= <(function) name> + ::= <(data) name> + ::= - - ::= - ::= */ + TOP_LEVEL is non-zero when called at the top level, in which case + if DMGL_PARAMS is not set we do not demangle the function + parameters. We only set this at the top level, because otherwise + we would not correctly demangle names in local scopes. */ -static status_t -demangle_name (dm, template_p) - demangling_t dm; - int *template_p; +static struct d_comp * +d_encoding (di, top_level) + struct d_info *di; + int top_level; { - int special_std_substitution; - int start = substitution_start (dm); + char peek = d_peek_char (di); - DEMANGLE_TRACE ("name", dm); - - switch (peek_char (dm)) + if (peek == 'G' || peek == 'T') + return d_special_name (di); + else { - case 'N': - /* This is a . */ - RETURN_IF_ERROR (demangle_nested_name (dm, template_p)); - break; + struct d_comp *dc; - case 'Z': - RETURN_IF_ERROR (demangle_local_name (dm)); - break; + dc = d_name (di); - case 'S': - /* The `St' substitution allows a name nested in std:: to appear - without being enclosed in a nested name. - ::= St # ::std:: */ - if (peek_char_next (dm) == 't') - { - (void) next_char (dm); - (void) next_char (dm); - result_append (dm, "std::"); - RETURN_IF_ERROR (demangle_unqualified_name (dm)); - } - else + if (dc != NULL && top_level && (di->options & DMGL_PARAMS) == 0) { - RETURN_IF_ERROR (demangle_substitution (dm, template_p, - &special_std_substitution)); - if (special_std_substitution) + /* Strip off any initial CV-qualifiers, as they really apply + to the `this' parameter, and they were not output by the + v2 demangler without DMGL_PARAMS. */ + while (dc->type == D_COMP_RESTRICT_THIS + || dc->type == D_COMP_VOLATILE_THIS + || dc->type == D_COMP_CONST_THIS) + dc = d_left (dc); + + /* If the top level is a D_COMP_LOCAL_NAME, then there may + be CV-qualifiers on its right argument which really apply + here; this happens when parsing a class which is local to + a function. */ + if (dc->type == D_COMP_LOCAL_NAME) { - /* This was the magic `std::' substitution. We can have - a or one of the unscoped names - following. */ - result_append (dm, "::"); - RETURN_IF_ERROR (demangle_name (dm, template_p)); + struct d_comp *dcr; + + dcr = d_right (dc); + while (dcr->type == D_COMP_RESTRICT_THIS + || dcr->type == D_COMP_VOLATILE_THIS + || dcr->type == D_COMP_CONST_THIS) + dcr = d_left (dcr); + dc->u.s_binary.right = dcr; } - } - break; - default: - /* This is an or . */ - RETURN_IF_ERROR (demangle_unqualified_name (dm)); - - /* If the is followed by template args, this - is an . */ - if (peek_char (dm) == 'I') - { - /* Add a substitution for the unqualified template name. */ - substitution_add (dm, start, 0, NOT_TEMPLATE_PARM); - - RETURN_IF_ERROR (demangle_template_args (dm)); - *template_p = 1; + return dc; } - else - *template_p = 0; - break; + peek = d_peek_char (di); + if (peek == '\0' || peek == 'E') + return dc; + return d_make_comp (di, D_COMP_TYPED_NAME, dc, + d_bare_function_type (di, has_return_type (dc))); } - - return STATUS_OK; } -/* Demangles and emits a . - - ::= N [] E */ +/* ::= + ::= + ::= + ::= -static status_t -demangle_nested_name (dm, template_p) - demangling_t dm; - int *template_p; -{ - char peek; + ::= + ::= St - DEMANGLE_TRACE ("nested-name", dm); + ::= + ::= +*/ - RETURN_IF_ERROR (demangle_char (dm, 'N')); +static struct d_comp * +d_name (di) + struct d_info *di; +{ + char peek = d_peek_char (di); + struct d_comp *dc; - peek = peek_char (dm); - if (peek == 'r' || peek == 'V' || peek == 'K') + switch (peek) { - /* Snarf up and emit CV qualifiers. */ - dyn_string_t cv_qualifiers = dyn_string_new (24); - demangle_CV_qualifiers (dm, cv_qualifiers); - result_append_string (dm, cv_qualifiers); - dyn_string_delete (cv_qualifiers); - result_append_space (dm); - } - - RETURN_IF_ERROR (demangle_prefix (dm, template_p)); - /* No need to demangle the final ; demangle_prefix will - handle it. */ - RETURN_IF_ERROR (demangle_char (dm, 'E')); + case 'N': + return d_nested_name (di); - return STATUS_OK; -} + case 'Z': + return d_local_name (di); + + case 'S': + { + int subst; + + if (d_peek_next_char (di) != 't') + { + dc = d_substitution (di, 0); + subst = 1; + } + else + { + d_advance (di, 2); + dc = d_make_comp (di, D_COMP_QUAL_NAME, d_make_name (di, "std", 3), + d_unqualified_name (di)); + di->expansion += 3; + subst = 0; + } -/* Demangles and emits a . + if (d_peek_char (di) != 'I') + { + /* The grammar does not permit this case to occur if we + called d_substitution() above (i.e., subst == 1). We + don't bother to check. */ + } + else + { + /* This is , which means that we just saw + , which is a substitution + candidate if we didn't just get it from a + substitution. */ + if (! subst) + { + if (! d_add_substitution (di, dc)) + return NULL; + } + dc = d_make_comp (di, D_COMP_TEMPLATE, dc, d_template_args (di)); + } - ::= - ::= - ::= # empty - ::= + return dc; + } - ::= - ::= + default: + dc = d_unqualified_name (di); + if (d_peek_char (di) == 'I') + { + /* This is , which means that we just saw + , which is a substitution + candidate. */ + if (! d_add_substitution (di, dc)) + return NULL; + dc = d_make_comp (di, D_COMP_TEMPLATE, dc, d_template_args (di)); + } + return dc; + } +} - ::= - ::= */ +/* ::= N [] E + ::= N [] E +*/ -static status_t -demangle_prefix (dm, template_p) - demangling_t dm; - int *template_p; +static struct d_comp * +d_nested_name (di) + struct d_info *di; { - int start = substitution_start (dm); - int nested = 0; + struct d_comp *ret; + struct d_comp **pret; + + if (d_next_char (di) != 'N') + return NULL; + + pret = d_cv_qualifiers (di, &ret, 1); + if (pret == NULL) + return NULL; - /* TEMPLATE_P is updated as we decend the nesting chain. After - , it is set to non-zero; after everything else it - is set to zero. */ + *pret = d_prefix (di); + if (*pret == NULL) + return NULL; + + if (d_next_char (di) != 'E') + return NULL; + + return ret; +} + +/* ::= + ::= + ::= + ::= + ::= + + ::= <(template) unqualified-name> + ::= + ::= +*/ - DEMANGLE_TRACE ("prefix", dm); +static struct d_comp * +d_prefix (di) + struct d_info *di; +{ + struct d_comp *ret = NULL; while (1) { char peek; - int unused; - - if (end_of_name_p (dm)) - return "Unexpected end of name in ."; + enum d_comp_type comb_type; + struct d_comp *dc; - peek = peek_char (dm); - - if (isdigit ((unsigned char) peek) - || (peek >= 'a' && peek <= 'z') - || peek == 'C' || peek == 'D' - || peek == 'S') - { - /* We have another level of scope qualification. */ - if (nested) - result_append (dm, "::"); - else - nested = 1; + peek = d_peek_char (di); + if (peek == '\0') + return NULL; - if (peek == 'S') - /* The substitution determines whether this is a - template-id. */ - RETURN_IF_ERROR (demangle_substitution (dm, template_p, - &unused)); - else - { - RETURN_IF_ERROR (demangle_unqualified_name (dm)); - *template_p = 0; - } - } - else if (peek == 'Z') - RETURN_IF_ERROR (demangle_local_name (dm)); + /* The older code accepts a here, but I don't see + that in the grammar. The older code does not accept a + here. */ + + comb_type = D_COMP_QUAL_NAME; + if (IS_DIGIT (peek) + || IS_LOWER (peek) + || peek == 'C' + || peek == 'D') + dc = d_unqualified_name (di); + else if (peek == 'S') + dc = d_substitution (di, 1); else if (peek == 'I') { - if (*template_p) - return STATUS_INTERNAL_ERROR; - /* The template name is a substitution candidate. */ - substitution_add (dm, start, 0, NOT_TEMPLATE_PARM); - RETURN_IF_ERROR (demangle_template_args (dm)); - *template_p = 1; + if (ret == NULL) + return NULL; + comb_type = D_COMP_TEMPLATE; + dc = d_template_args (di); } + else if (peek == 'T') + dc = d_template_param (di); else if (peek == 'E') - /* All done. */ - return STATUS_OK; + return ret; + else + return NULL; + + if (ret == NULL) + ret = dc; else - return "Unexpected character in ."; + ret = d_make_comp (di, comb_type, ret, dc); - /* Add a new substitution for the prefix thus far. */ - substitution_add (dm, start, *template_p, NOT_TEMPLATE_PARM); + if (peek != 'S' && d_peek_char (di) != 'E') + { + if (! d_add_substitution (di, ret)) + return NULL; + } } } -/* Demangles and emits an . If the - is a function and the first element in the - argument list should be taken to be its return type, - ENCODE_RETURN_TYPE is non-zero. - - ::= - ::= - ::= */ +/* ::= + ::= + ::= +*/ -static status_t -demangle_unqualified_name (dm) - demangling_t dm; +static struct d_comp * +d_unqualified_name (di) + struct d_info *di; { - char peek = peek_char (dm); - - DEMANGLE_TRACE ("unqualified-name", dm); + char peek; - if (isdigit ((unsigned char) peek)) - RETURN_IF_ERROR (demangle_source_name (dm)); - else if (peek >= 'a' && peek <= 'z') + peek = d_peek_char (di); + if (IS_DIGIT (peek)) + return d_source_name (di); + else if (IS_LOWER (peek)) { - int num_args; - RETURN_IF_ERROR (demangle_operator_name (dm, 0, &num_args)); + struct d_comp *ret; + + ret = d_operator_name (di); + if (ret != NULL && ret->type == D_COMP_OPERATOR) + di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2; + return ret; } else if (peek == 'C' || peek == 'D') - RETURN_IF_ERROR (demangle_ctor_dtor_name (dm)); + return d_ctor_dtor_name (di); else - return "Unexpected character in ."; - - return STATUS_OK; + return NULL; } -/* Demangles and emits . - - ::= */ +/* ::= <(positive length) number> */ -static status_t -demangle_source_name (dm) - demangling_t dm; +static struct d_comp * +d_source_name (di) + struct d_info *di; { - int length; + long len; + struct d_comp *ret; - DEMANGLE_TRACE ("source-name", dm); + len = d_number (di); + if (len <= 0) + return NULL; + ret = d_identifier (di, len); + di->last_name = ret; + return ret; +} - /* Decode the length of the identifier. */ - RETURN_IF_ERROR (demangle_number (dm, &length, 10, 0)); - if (length == 0) - return "Zero length in ."; +/* number ::= [n] <(non-negative decimal integer)> */ - /* Now the identifier itself. It's placed into last_source_name, - where it can be used to build a constructor or destructor name. */ - RETURN_IF_ERROR (demangle_identifier (dm, length, - dm->last_source_name)); +static long +d_number (di) + struct d_info *di; +{ + int negative; + char peek; + long ret; - /* Emit it. */ - result_append_string (dm, dm->last_source_name); + negative = 0; + peek = d_peek_char (di); + if (peek == 'n') + { + negative = 1; + d_advance (di, 1); + peek = d_peek_char (di); + } - return STATUS_OK; + ret = 0; + while (1) + { + if (! IS_DIGIT (peek)) + { + if (negative) + ret = - ret; + return ret; + } + ret = ret * 10 + peek - '0'; + d_advance (di, 1); + peek = d_peek_char (di); + } } -/* Demangles a number, either a or a at the - current position, consuming all consecutive digit characters. Sets - *VALUE to the resulting numberand returns STATUS_OK. The number is - interpreted as BASE, which must be either 10 or 36. If IS_SIGNED - is non-zero, negative numbers -- prefixed with `n' -- are accepted. - - ::= [n] +/* identifier ::= <(unqualified source code identifier)> */ - ::= */ - -static status_t -demangle_number (dm, value, base, is_signed) - demangling_t dm; - int *value; - int base; - int is_signed; +static struct d_comp * +d_identifier (di, len) + struct d_info *di; + int len; { - dyn_string_t number = dyn_string_new (10); + const char *name; - DEMANGLE_TRACE ("number", dm); + name = d_str (di); - demangle_number_literally (dm, number, base, is_signed); - *value = strtol (dyn_string_buf (number), NULL, base); - dyn_string_delete (number); + if (di->send - name < len) + return NULL; - return STATUS_OK; -} + d_advance (di, len); + + /* A Java mangled name may have a trailing '$' if it is a C++ + keyword. This '$' is not included in the length count. We just + ignore the '$'. */ + if ((di->options & DMGL_JAVA) != 0 + && d_peek_char (di) == '$') + d_advance (di, 1); + + /* Look for something which looks like a gcc encoding of an + anonymous namespace, and replace it with a more user friendly + name. */ + if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2 + && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX, + ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0) + { + const char *s; -/* Demangles a number at the current position. The digits (and minus - sign, if present) that make up the number are appended to STR. - Only base-BASE digits are accepted; BASE must be either 10 or 36. - If IS_SIGNED, negative numbers -- prefixed with `n' -- are - accepted. Does not consume a trailing underscore or other - terminating character. */ + s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN; + if ((*s == '.' || *s == '_' || *s == '$') + && s[1] == 'N') + { + di->expansion -= len - sizeof "(anonymous namespace)"; + return d_make_name (di, "(anonymous namespace)", + sizeof "(anonymous namespace)" - 1); + } + } -static status_t -demangle_number_literally (dm, str, base, is_signed) - demangling_t dm; - dyn_string_t str; - int base; - int is_signed; -{ - DEMANGLE_TRACE ("number*", dm); + return d_make_name (di, name, len); +} - if (base != 10 && base != 36) - return STATUS_INTERNAL_ERROR; +/* operator_name ::= many different two character encodings. + ::= cv + ::= v +*/ - /* An `n' denotes a negative number. */ - if (is_signed && peek_char (dm) == 'n') - { - /* Skip past the n. */ - advance_char (dm); - /* The normal way to write a negative number is with a minus - sign. */ - dyn_string_append_char (str, '-'); - } +#define NL(s) s, (sizeof s) - 1 - /* Loop until we hit a non-digit. */ - while (1) - { - char peek = peek_char (dm); - if (isdigit ((unsigned char) peek) - || (base == 36 && peek >= 'A' && peek <= 'Z')) - /* Accumulate digits. */ - dyn_string_append_char (str, next_char (dm)); - else - /* Not a digit? All done. */ - break; - } +static const struct d_operator_info d_operators[] = +{ + { "aN", NL ("&="), 2 }, + { "aS", NL ("="), 2 }, + { "aa", NL ("&&"), 2 }, + { "ad", NL ("&"), 1 }, + { "an", NL ("&"), 2 }, + { "cl", NL ("()"), 0 }, + { "cm", NL (","), 2 }, + { "co", NL ("~"), 1 }, + { "dV", NL ("/="), 2 }, + { "da", NL ("delete[]"), 1 }, + { "de", NL ("*"), 1 }, + { "dl", NL ("delete"), 1 }, + { "dv", NL ("/"), 2 }, + { "eO", NL ("^="), 2 }, + { "eo", NL ("^"), 2 }, + { "eq", NL ("=="), 2 }, + { "ge", NL (">="), 2 }, + { "gt", NL (">"), 2 }, + { "ix", NL ("[]"), 2 }, + { "lS", NL ("<<="), 2 }, + { "le", NL ("<="), 2 }, + { "ls", NL ("<<"), 2 }, + { "lt", NL ("<"), 2 }, + { "mI", NL ("-="), 2 }, + { "mL", NL ("*="), 2 }, + { "mi", NL ("-"), 2 }, + { "ml", NL ("*"), 2 }, + { "mm", NL ("--"), 1 }, + { "na", NL ("new[]"), 1 }, + { "ne", NL ("!="), 2 }, + { "ng", NL ("-"), 1 }, + { "nt", NL ("!"), 1 }, + { "nw", NL ("new"), 1 }, + { "oR", NL ("|="), 2 }, + { "oo", NL ("||"), 2 }, + { "or", NL ("|"), 2 }, + { "pL", NL ("+="), 2 }, + { "pl", NL ("+"), 2 }, + { "pm", NL ("->*"), 2 }, + { "pp", NL ("++"), 1 }, + { "ps", NL ("+"), 1 }, + { "pt", NL ("->"), 2 }, + { "qu", NL ("?"), 3 }, + { "rM", NL ("%="), 2 }, + { "rS", NL (">>="), 2 }, + { "rm", NL ("%"), 2 }, + { "rs", NL (">>"), 2 }, + { "st", NL ("sizeof "), 1 }, + { "sz", NL ("sizeof "), 1 } +}; - return STATUS_OK; -} - -/* Demangles an identifier at the current position of LENGTH - characters and places it in IDENTIFIER. */ - -static status_t -demangle_identifier (dm, length, identifier) - demangling_t dm; - int length; - dyn_string_t identifier; -{ - DEMANGLE_TRACE ("identifier", dm); - - dyn_string_clear (identifier); - dyn_string_resize (identifier, length); - while (length-- > 0) - { - if (end_of_name_p (dm)) - return "Unexpected end of name in ."; - dyn_string_append_char (identifier, next_char (dm)); - } - - return STATUS_OK; -} - -/* Demangles and emits an . If SHORT_NAME is non-zero, - the short form is emitted; otherwise the full source form - (`operator +' etc.) is emitted. *NUM_ARGS is set to the number of - operands that the operator takes. - - - ::= nw # new - ::= na # new[] - ::= dl # delete - ::= da # delete[] - ::= ps # + (unary) - ::= ng # - (unary) - ::= ad # & (unary) - ::= de # * (unary) - ::= co # ~ - ::= pl # + - ::= mi # - - ::= ml # * - ::= dv # / - ::= rm # % - ::= an # & - ::= or # | - ::= eo # ^ - ::= aS # = - ::= pL # += - ::= mI # -= - ::= mL # *= - ::= dV # /= - ::= rM # %= - ::= aN # &= - ::= oR # |= - ::= eO # ^= - ::= ls # << - ::= rs # >> - ::= lS # <<= - ::= rS # >>= - ::= eq # == - ::= ne # != - ::= lt # < - ::= gt # > - ::= le # <= - ::= ge # >= - ::= nt # ! - ::= aa # && - ::= oo # || - ::= pp # ++ - ::= mm # -- - ::= cm # , - ::= pm # ->* - ::= pt # -> - ::= cl # () - ::= ix # [] - ::= qu # ? - ::= sz # sizeof - ::= cv # cast - ::= vx # vendor extended operator */ - -static status_t -demangle_operator_name (dm, short_name, num_args) - demangling_t dm; - int short_name; - int *num_args; -{ - struct operator_code - { - /* The mangled code for this operator. */ - const char *code; - /* The source name of this operator. */ - const char *name; - /* The number of arguments this operator takes. */ - int num_args; - }; - - static const struct operator_code operators[] = - { - { "aN", "&=" , 2 }, - { "aS", "=" , 2 }, - { "aa", "&&" , 2 }, - { "ad", "&" , 1 }, - { "an", "&" , 2 }, - { "cl", "()" , 0 }, - { "cm", "," , 2 }, - { "co", "~" , 1 }, - { "dV", "/=" , 2 }, - { "da", "delete[]" , 1 }, - { "de", "*" , 1 }, - { "dl", "delete" , 1 }, - { "dv", "/" , 2 }, - { "eO", "^=" , 2 }, - { "eo", "^" , 2 }, - { "eq", "==" , 2 }, - { "ge", ">=" , 2 }, - { "gt", ">" , 2 }, - { "ix", "[]" , 2 }, - { "lS", "<<=" , 2 }, - { "le", "<=" , 2 }, - { "ls", "<<" , 2 }, - { "lt", "<" , 2 }, - { "mI", "-=" , 2 }, - { "mL", "*=" , 2 }, - { "mi", "-" , 2 }, - { "ml", "*" , 2 }, - { "mm", "--" , 1 }, - { "na", "new[]" , 1 }, - { "ne", "!=" , 2 }, - { "ng", "-" , 1 }, - { "nt", "!" , 1 }, - { "nw", "new" , 1 }, - { "oR", "|=" , 2 }, - { "oo", "||" , 2 }, - { "or", "|" , 2 }, - { "pL", "+=" , 2 }, - { "pl", "+" , 2 }, - { "pm", "->*" , 2 }, - { "pp", "++" , 1 }, - { "ps", "+" , 1 }, - { "qu", "?" , 3 }, - { "rM", "%=" , 2 }, - { "rS", ">>=" , 2 }, - { "rm", "%" , 2 }, - { "rs", ">>" , 2 }, - { "sz", "sizeof" , 1 } - }; - - const int num_operators = - sizeof (operators) / sizeof (struct operator_code); - - int c0 = next_char (dm); - int c1 = next_char (dm); - const struct operator_code* p1 = operators; - const struct operator_code* p2 = operators + num_operators; - - DEMANGLE_TRACE ("operator-name", dm); - - /* Is this a vendor extended operator? */ - if (c0 == 'v' && c1 == 'x') - { - result_append (dm, "operator"); - RETURN_IF_ERROR (demangle_source_name (dm)); - *num_args = 0; - return STATUS_OK; - } - - /* Is this a conversion operator? */ - if (c0 == 'c' && c1 == 'v') - { - result_append (dm, "operator "); - /* Demangle the converted-to type. */ - RETURN_IF_ERROR (demangle_type (dm)); - *num_args = 0; - return STATUS_OK; - } - - /* Perform a binary search for the operator code. */ - while (1) +static struct d_comp * +d_operator_name (di) + struct d_info *di; +{ + char c1; + char c2; + + c1 = d_next_char (di); + c2 = d_next_char (di); + if (c1 == 'v' && IS_DIGIT (c2)) + return d_make_extended_operator (di, c2 - '0', d_source_name (di)); + else if (c1 == 'c' && c2 == 'v') + return d_make_comp (di, D_COMP_CAST, d_type (di), NULL); + else { - const struct operator_code* p = p1 + (p2 - p1) / 2; - char match0 = p->code[0]; - char match1 = p->code[1]; + int low = 0; + int high = sizeof (d_operators) / sizeof (d_operators[0]); - if (c0 == match0 && c1 == match1) - /* Found it. */ + while (1) { - if (!short_name) - result_append (dm, "operator"); - result_append (dm, p->name); - *num_args = p->num_args; + int i; + const struct d_operator_info *p; - return STATUS_OK; - } + i = low + (high - low) / 2; + p = d_operators + i; - if (p == p1) - /* Couldn't find it. */ - return "Unknown code in ."; + if (c1 == p->code[0] && c2 == p->code[1]) + return d_make_operator (di, p); - /* Try again. */ - if (c0 < match0 || (c0 == match0 && c1 < match1)) - p2 = p; - else - p1 = p; + if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1])) + high = i; + else + low = i + 1; + if (low == high) + return NULL; + } } } -/* Demangles and emits a . - - ::= GV # Guard variable - ::= Th[n] _ - # non-virtual base override thunk - ::= Tv[n] _ - _ - # virtual base override thunk - ::= TV # virtual table - ::= TT # VTT - ::= TI # typeinfo structure - ::= TS # typeinfo name - - Also demangles the special g++ mangling, - - ::= CT _ - # construction vtable */ +/* ::= TV + ::= TT + ::= TI + ::= TS + ::= GV <(object) name> + ::= T <(base) encoding> + ::= Tc <(base) encoding> + Also g++ extensions: + ::= TC <(offset) number> _ <(base) type> + ::= TF + ::= TJ + ::= GR +*/ -static status_t -demangle_special_name (dm) - demangling_t dm; +static struct d_comp * +d_special_name (di) + struct d_info *di; { - dyn_string_t number; - int unused; - char peek = peek_char (dm); + char c; - DEMANGLE_TRACE ("special-name", dm); - - if (peek == 'G') - { - /* A guard variable name. Consume the G. */ - advance_char (dm); - RETURN_IF_ERROR (demangle_char (dm, 'V')); - result_append (dm, "guard variable for "); - RETURN_IF_ERROR (demangle_name (dm, &unused)); - } - else if (peek == 'T') + di->expansion += 20; + c = d_next_char (di); + if (c == 'T') { - /* Other C++ implementation miscellania. Consume the T. */ - advance_char (dm); - - switch (peek_char (dm)) + switch (d_next_char (di)) { case 'V': - /* Virtual table. */ - advance_char (dm); - result_append (dm, "vtable for "); - RETURN_IF_ERROR (demangle_type (dm)); - break; - + di->expansion -= 5; + return d_make_comp (di, D_COMP_VTABLE, d_type (di), NULL); case 'T': - /* VTT structure. */ - advance_char (dm); - result_append (dm, "VTT for "); - RETURN_IF_ERROR (demangle_type (dm)); - break; - + di->expansion -= 10; + return d_make_comp (di, D_COMP_VTT, d_type (di), NULL); case 'I': - /* Typeinfo structure. */ - advance_char (dm); - result_append (dm, "typeinfo for "); - RETURN_IF_ERROR (demangle_type (dm)); - break; - + return d_make_comp (di, D_COMP_TYPEINFO, d_type (di), NULL); case 'S': - /* Character string containing type name, used in typeinfo. */ - advance_char (dm); - result_append (dm, "typeinfo name for "); - RETURN_IF_ERROR (demangle_type (dm)); - break; + return d_make_comp (di, D_COMP_TYPEINFO_NAME, d_type (di), NULL); case 'h': - /* Non-virtual thunk. */ - advance_char (dm); - result_append (dm, "non-virtual thunk"); - /* Demangle and emit the offset. */ - number = dyn_string_new (4); - demangle_number_literally (dm, number, 10, 1); - /* Don't display the offset unless in verbose mode. */ - if (flag_verbose) - { - result_append_char (dm, ' '); - result_append_string (dm, number); - } - dyn_string_delete (number); - /* Demangle the separator. */ - RETURN_IF_ERROR (demangle_char (dm, '_')); - /* Demangle and emit the target name and function type. */ - result_append (dm, " to "); - RETURN_IF_ERROR (demangle_encoding (dm)); - break; + if (! d_call_offset (di, 'h')) + return NULL; + return d_make_comp (di, D_COMP_THUNK, d_encoding (di, 0), NULL); case 'v': - /* Virtual thunk. */ - advance_char (dm); - result_append (dm, "virtual thunk "); - /* Demangle and emit the offset. */ - number = dyn_string_new (4); - demangle_number_literally (dm, number, 10, 1); - /* Don't display the offset unless in verbose mode. */ - if (flag_verbose) - { - result_append_string (dm, number); - result_append_char (dm, ' '); - } - dyn_string_delete (number); - /* Demangle the separator. */ - RETURN_IF_ERROR (demangle_char (dm, '_')); - /* Demangle and emit the vcall offset. */ - number = dyn_string_new (4); - demangle_number_literally (dm, number, 10, 1); - /* Don't display the vcall offset unless in verbose mode. */ - if (flag_verbose) - { - result_append_string (dm, number); - result_append_char (dm, ' '); - } - dyn_string_delete (number); - /* Demangle the separator. */ - RETURN_IF_ERROR (demangle_char (dm, '_')); - /* Demangle and emit the target function. */ - result_append (dm, "to "); - RETURN_IF_ERROR (demangle_encoding (dm)); - break; + if (! d_call_offset (di, 'v')) + return NULL; + return d_make_comp (di, D_COMP_VIRTUAL_THUNK, d_encoding (di, 0), + NULL); + + case 'c': + if (! d_call_offset (di, '\0')) + return NULL; + if (! d_call_offset (di, '\0')) + return NULL; + return d_make_comp (di, D_COMP_COVARIANT_THUNK, d_encoding (di, 0), + NULL); case 'C': - /* TC is a special g++ mangling for a construction vtable. */ - if (!flag_strict) - { - advance_char (dm); - result_append (dm, "construction vtable for "); - RETURN_IF_ERROR (demangle_type (dm)); - /* Demangle the offset. */ - number = dyn_string_new (4); - demangle_number_literally (dm, number, 10, 1); - /* Demangle the underscore separator. */ - RETURN_IF_ERROR (demangle_char (dm, '_')); - /* Demangle the base type. */ - result_append (dm, "-in-"); - RETURN_IF_ERROR (demangle_type (dm)); - /* Don't display the offset unless in verbose mode. */ - if (flag_verbose) - { - result_append_char (dm, ' '); - result_append_string (dm, number); - } - dyn_string_delete (number); - break; - } - /* If flag_strict, fall through. */ + { + struct d_comp *derived_type; + long offset; + struct d_comp *base_type; + + derived_type = d_type (di); + offset = d_number (di); + if (offset < 0) + return NULL; + if (d_next_char (di) != '_') + return NULL; + base_type = d_type (di); + /* We don't display the offset. FIXME: We should display + it in verbose mode. */ + di->expansion += 5; + return d_make_comp (di, D_COMP_CONSTRUCTION_VTABLE, base_type, + derived_type); + } + + case 'F': + return d_make_comp (di, D_COMP_TYPEINFO_FN, d_type (di), NULL); + case 'J': + return d_make_comp (di, D_COMP_JAVA_CLASS, d_type (di), NULL); default: - return "Unrecognized ."; + return NULL; } } - else - return STATUS_ERROR; - - return STATUS_OK; -} + else if (c == 'G') + { + switch (d_next_char (di)) + { + case 'V': + return d_make_comp (di, D_COMP_GUARD, d_name (di), NULL); -/* Demangles and emits a . - - - ::= C1 # complete object (in-charge) ctor - ::= C2 # base object (not-in-charge) ctor - ::= C3 # complete object (in-charge) allocating ctor - ::= C4 # base object (not-in-charge) allocating ctor - ::= D0 # deleting (in-charge) dtor - ::= D1 # complete object (in-charge) dtor - ::= D2 # base object (not-in-charge) dtor */ + case 'R': + return d_make_comp (di, D_COMP_REFTEMP, d_name (di), NULL); -static status_t -demangle_ctor_dtor_name (dm) - demangling_t dm; -{ - static const char *const ctor_flavors[] = - { - "in-charge", - "not-in-charge", - "in-charge allocating", - "not-in-charge allocating" - }; - static const char *const dtor_flavors[] = - { - "in-charge deleting", - "in-charge", - "not-in-charge" - }; - - int flavor; - char peek = peek_char (dm); - - DEMANGLE_TRACE ("ctor-dtor-name", dm); - - if (peek == 'C') - { - /* A constructor name. Consume the C. */ - advance_char (dm); - if (peek_char (dm) < '1' || peek_char (dm) > '4') - return "Unrecognized constructor."; - result_append_string (dm, dm->last_source_name); - /* Print the flavor of the constructor if in verbose mode. */ - flavor = next_char (dm) - '1'; - if (flag_verbose) - { - result_append (dm, "["); - result_append (dm, ctor_flavors[flavor]); - result_append_char (dm, ']'); - } - } - else if (peek == 'D') - { - /* A destructor name. Consume the D. */ - advance_char (dm); - if (peek_char (dm) < '0' || peek_char (dm) > '2') - return "Unrecognized destructor."; - result_append_char (dm, '~'); - result_append_string (dm, dm->last_source_name); - /* Print the flavor of the destructor if in verbose mode. */ - flavor = next_char (dm) - '0'; - if (flag_verbose) - { - result_append (dm, " ["); - result_append (dm, dtor_flavors[flavor]); - result_append_char (dm, ']'); + default: + return NULL; } } else - return STATUS_ERROR; - - return STATUS_OK; + return NULL; } -/* Handle pointer, reference, and pointer-to-member cases for - demangle_type. All consecutive `P's, `R's, and 'M's are joined to - build a pointer/reference type. We snarf all these, plus the - following , all at once since we need to know whether we have - a pointer to data or pointer to function to construct the right - output syntax. C++'s pointer syntax is hairy. +/* ::= h _ + ::= v _ + + ::= <(offset) number> + + ::= <(offset) number> _ <(virtual offset) number> - ::= P - ::= R - ::= + The C parameter, if not '\0', is a character we just read which is + the start of the . - ::= M */ + We don't display the offset information anywhere. FIXME: We should + display it in verbose mode. */ -static status_t -demangle_type_ptr (dm) - demangling_t dm; +static int +d_call_offset (di, c) + struct d_info *di; + int c; { - char next; - status_t status; + long offset; + long virtual_offset; - /* Collect pointer symbols into this string. */ - dyn_string_t symbols = dyn_string_new (10); + if (c == '\0') + c = d_next_char (di); + + if (c == 'h') + offset = d_number (di); + else if (c == 'v') + { + offset = d_number (di); + if (d_next_char (di) != '_') + return 0; + virtual_offset = d_number (di); + } + else + return 0; - DEMANGLE_TRACE ("type*", dm); + if (d_next_char (di) != '_') + return 0; - /* Scan forward, collecting pointers and references into symbols, - until we hit something else. Then emit the type. */ - while (1) + return 1; +} + +/* ::= C1 + ::= C2 + ::= C3 + ::= D0 + ::= D1 + ::= D2 +*/ + +static struct d_comp * +d_ctor_dtor_name (di) + struct d_info *di; +{ + if (di->last_name != NULL) { - next = peek_char (dm); - if (next == 'P') - { - dyn_string_append_char (symbols, '*'); - advance_char (dm); - } - else if (next == 'R') - { - dyn_string_append_char (symbols, '&'); - advance_char (dm); - } - else if (next == 'M') - { - /* Pointer-to-member. */ - dyn_string_t class_type; - - /* Eat the 'M'. */ - advance_char (dm); - - /* Capture the type of which this is a pointer-to-member. */ - result_push (dm); - RETURN_IF_ERROR (demangle_type (dm)); - class_type = (dyn_string_t) result_pop (dm); - - /* Build the pointer-to-member notation. It comes before - other pointer and reference qualifiers -- */ - dyn_string_prepend_cstr (symbols, "::*"); - dyn_string_prepend (symbols, class_type); - dyn_string_delete (class_type); - - if (peek_char (dm) == 'F') - continue; - - /* Demangle the type of the pointed-to member. */ - status = demangle_type (dm); - /* Make it pretty. */ - result_append_space (dm); - /* Add the pointer-to-member syntax, and other pointer and - reference symbols. */ - result_append_string (dm, symbols); - /* Clean up. */ - dyn_string_delete (symbols); - - RETURN_IF_ERROR (status); - return STATUS_OK; - } - else if (next == 'F') - { - /* Ooh, tricky, a pointer-to-function. */ - int position = result_length (dm); - result_append_char (dm, '('); - result_append_string (dm, symbols); - result_append_char (dm, ')'); - dyn_string_delete (symbols); - - RETURN_IF_ERROR (demangle_function_type (dm, position)); - return STATUS_OK; - } - else - { - /* No more pointe or reference tokens. Finish up. */ - status = demangle_type (dm); + if (di->last_name->type == D_COMP_NAME) + di->expansion += di->last_name->u.s_name.len; + else if (di->last_name->type == D_COMP_SUB_STD) + di->expansion += di->last_name->u.s_string.len; + } + switch (d_next_char (di)) + { + case 'C': + { + enum gnu_v3_ctor_kinds kind; - result_append_string (dm, symbols); - dyn_string_delete (symbols); + switch (d_next_char (di)) + { + case '1': + kind = gnu_v3_complete_object_ctor; + break; + case '2': + kind = gnu_v3_base_object_ctor; + break; + case '3': + kind = gnu_v3_complete_object_allocating_ctor; + break; + default: + return NULL; + } + return d_make_ctor (di, kind, di->last_name); + } - RETURN_IF_ERROR (status); - return STATUS_OK; - } + case 'D': + { + enum gnu_v3_dtor_kinds kind; + + switch (d_next_char (di)) + { + case '0': + kind = gnu_v3_deleting_dtor; + break; + case '1': + kind = gnu_v3_complete_object_dtor; + break; + case '2': + kind = gnu_v3_base_object_dtor; + break; + default: + return NULL; + } + return d_make_dtor (di, kind, di->last_name); + } + + default: + return NULL; } } -/* Demangles and emits a . - - ::= - ::= - ::= - ::= - ::= - ::= - ::= - ::= P # pointer-to - ::= R # reference-to - ::= C # complex pair (C 2000) - ::= G # imaginary (C 2000) - ::= U # vendor extended type qualifier - ::= */ +/* ::= + ::= + ::= + ::= + ::= + ::= + ::= + ::= + ::= + ::= P + ::= R + ::= C + ::= G + ::= U + + ::= various one letter codes + ::= u +*/ -static status_t -demangle_type (dm) - demangling_t dm; +static const struct d_builtin_type_info d_builtin_types[26] = { - int start = substitution_start (dm); - char peek = peek_char (dm); - int template_p = 0; - int special_std_substitution; - int is_builtin_type = 0; - template_arg_list_t old_arg_list = current_template_arg_list (dm); - int template_parm = NOT_TEMPLATE_PARM; - - DEMANGLE_TRACE ("type", dm); + /* a */ { NL ("signed char"), NL ("signed char"), D_PRINT_INT }, + /* b */ { NL ("bool"), NL ("boolean"), D_PRINT_BOOL }, + /* c */ { NL ("char"), NL ("byte"), D_PRINT_INT }, + /* d */ { NL ("double"), NL ("double"), D_PRINT_DEFAULT }, + /* e */ { NL ("long double"), NL ("long double"), D_PRINT_DEFAULT }, + /* f */ { NL ("float"), NL ("float"), D_PRINT_DEFAULT }, + /* g */ { NL ("__float128"), NL ("__float128"), D_PRINT_DEFAULT }, + /* h */ { NL ("unsigned char"), NL ("unsigned char"), D_PRINT_INT }, + /* i */ { NL ("int"), NL ("int"), D_PRINT_INT }, + /* j */ { NL ("unsigned int"), NL ("unsigned"), D_PRINT_INT }, + /* k */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT }, + /* l */ { NL ("long"), NL ("long"), D_PRINT_LONG }, + /* m */ { NL ("unsigned long"), NL ("unsigned long"), D_PRINT_LONG }, + /* n */ { NL ("__int128"), NL ("__int128"), D_PRINT_DEFAULT }, + /* o */ { NL ("unsigned __int128"), NL ("unsigned __int128"), D_PRINT_DEFAULT }, + /* p */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT }, + /* q */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT }, + /* r */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT }, + /* s */ { NL ("short"), NL ("short"), D_PRINT_INT }, + /* t */ { NL ("unsigned short"), NL ("unsigned short"), D_PRINT_INT }, + /* u */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT }, + /* v */ { NL ("void"), NL ("void"), D_PRINT_VOID }, + /* w */ { NL ("wchar_t"), NL ("char"), D_PRINT_INT }, + /* x */ { NL ("long long"), NL ("long"), D_PRINT_DEFAULT }, + /* y */ { NL ("unsigned long long"), NL ("unsigned long long"), D_PRINT_DEFAULT }, + /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT }, +}; - /* A can start with a digit (a ), an - N (a ), or a Z (a ). */ - if (isdigit ((unsigned char) peek) || peek == 'N' || peek == 'Z') - RETURN_IF_ERROR (demangle_class_enum_type (dm, &template_p)); - else if (peek >= 'a' && peek <= 'z') +static struct d_comp * +d_type (di) + struct d_info *di; +{ + char peek; + struct d_comp *ret; + int can_subst; + + /* The ABI specifies that when CV-qualifiers are used, the base type + is substitutable, and the fully qualified type is substitutable, + but the base type with a strict subset of the CV-qualifiers is + not substitutable. The natural recursive implementation of the + CV-qualifiers would cause subsets to be substitutable, so instead + we pull them all off now. + + FIXME: The ABI says that order-insensitive vendor qualifiers + should be handled in the same way, but we have no way to tell + which vendor qualifiers are order-insensitive and which are + order-sensitive. So we just assume that they are all + order-sensitive. g++ 3.4 supports only one vendor qualifier, + __vector, and it treats it as order-sensitive when mangling + names. */ + + peek = d_peek_char (di); + if (peek == 'r' || peek == 'V' || peek == 'K') { - RETURN_IF_ERROR (demangle_builtin_type (dm)); - is_builtin_type = 1; - } - else - switch (peek) - { - case 'r': - case 'V': - case 'K': - { - status_t status; - dyn_string_t cv_qualifiers = dyn_string_new (24); - demangle_CV_qualifiers (dm, cv_qualifiers); + struct d_comp **pret; - /* If the qualifiers apply to a pointer or reference, they - need to come after the whole qualified type. */ - if (peek_char (dm) == 'P' || peek_char (dm) == 'R') - { - status = demangle_type (dm); - result_append_space (dm); - result_append_string (dm, cv_qualifiers); - } - /* Otherwise, the qualifiers come first. */ - else - { - result_append_string (dm, cv_qualifiers); - result_append_space (dm); - status = demangle_type (dm); - } + pret = d_cv_qualifiers (di, &ret, 0); + if (pret == NULL) + return NULL; + *pret = d_type (di); + if (! d_add_substitution (di, ret)) + return NULL; + return ret; + } - dyn_string_delete (cv_qualifiers); - RETURN_IF_ERROR (status); - } - break; + can_subst = 1; - case 'F': - return "Non-pointer or -reference function type."; + switch (peek) + { + case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': + case 'h': case 'i': case 'j': case 'l': case 'm': case 'n': + case 'o': case 's': case 't': + case 'v': case 'w': case 'x': case 'y': case 'z': + ret = d_make_builtin_type (di, &d_builtin_types[peek - 'a']); + di->expansion += ret->u.s_builtin.type->len; + can_subst = 0; + d_advance (di, 1); + break; - case 'A': - RETURN_IF_ERROR (demangle_array_type (dm)); - break; + case 'u': + d_advance (di, 1); + ret = d_make_comp (di, D_COMP_VENDOR_TYPE, d_source_name (di), NULL); + break; - case 'T': - RETURN_IF_ERROR (demangle_template_param (dm, &template_parm)); - break; + case 'F': + ret = d_function_type (di); + break; - case 'S': - RETURN_IF_ERROR (demangle_substitution (dm, &template_p, - &special_std_substitution)); - if (special_std_substitution) - { - /* This was the magic `std::' substitution. What follows - must be a class name in that namespace. */ - result_append (dm, "::"); - RETURN_IF_ERROR (demangle_class_enum_type (dm, &template_p)); - } - break; + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + case 'N': + case 'Z': + ret = d_class_enum_type (di); + break; - case 'P': - case 'R': - case 'M': - RETURN_IF_ERROR (demangle_type_ptr (dm)); - break; + case 'A': + ret = d_array_type (di); + break; - case 'C': - /* A C99 complex type. */ - result_append (dm, "complex "); - advance_char (dm); - RETURN_IF_ERROR (demangle_type (dm)); - break; + case 'M': + ret = d_pointer_to_member_type (di); + break; - case 'G': - /* A C99 imaginary type. */ - result_append (dm, "imaginary "); - advance_char (dm); - RETURN_IF_ERROR (demangle_type (dm)); - break; + case 'T': + ret = d_template_param (di); + if (d_peek_char (di) == 'I') + { + /* This is . The + part is a substitution + candidate. */ + if (! d_add_substitution (di, ret)) + return NULL; + ret = d_make_comp (di, D_COMP_TEMPLATE, ret, d_template_args (di)); + } + break; - case 'U': - /* Vendor extended type qualifier. */ - advance_char (dm); - RETURN_IF_ERROR (demangle_source_name (dm)); - result_append_char (dm, ' '); - RETURN_IF_ERROR (demangle_type (dm)); - break; + case 'S': + /* If this is a special substitution, then it is the start of + . */ + { + char peek_next; - default: - return "Unexpected character in ."; + peek_next = d_peek_next_char (di); + if (IS_DIGIT (peek_next) + || peek_next == '_' + || IS_UPPER (peek_next)) + { + ret = d_substitution (di, 0); + /* The substituted name may have been a template name and + may be followed by tepmlate args. */ + if (d_peek_char (di) == 'I') + ret = d_make_comp (di, D_COMP_TEMPLATE, ret, + d_template_args (di)); + else + can_subst = 0; + } + else + { + ret = d_class_enum_type (di); + /* If the substitution was a complete type, then it is not + a new substitution candidate. However, if the + substitution was followed by template arguments, then + the whole thing is a substitution candidate. */ + if (ret != NULL && ret->type == D_COMP_SUB_STD) + can_subst = 0; + } } + break; - /* Unqualified builin types are not substitution candidates. */ - if (!is_builtin_type) - /* Add a new substitution for the type. If this type was a - , pass its index since from the point of - substitutions, a token is a substitution - candidate distinct from the type that is substituted for it. */ - substitution_add (dm, start, template_p, template_parm); - - /* Pop off template argument lists added during mangling of this - type. */ - pop_to_template_arg_list (dm, old_arg_list); - - return STATUS_OK; -} - -/* C++ source names of builtin types, indexed by the mangled code - letter's position in the alphabet ('a' -> 0, 'b' -> 1, etc). */ -static const char *const builtin_type_names[26] = -{ - "signed char", /* a */ - "bool", /* b */ - "char", /* c */ - "double", /* d */ - "long double", /* e */ - "float", /* f */ - "__float128", /* g */ - "unsigned char", /* h */ - "int", /* i */ - "unsigned", /* j */ - NULL, /* k */ - "long", /* l */ - "unsigned long", /* m */ - "__int128", /* n */ - "unsigned __int128", /* o */ - NULL, /* p */ - NULL, /* q */ - NULL, /* r */ - "short", /* s */ - "unsigned short", /* t */ - NULL, /* u */ - "void", /* v */ - "wchar_t", /* w */ - "long long", /* x */ - "unsigned long long", /* y */ - "..." /* z */ -}; + case 'P': + d_advance (di, 1); + ret = d_make_comp (di, D_COMP_POINTER, d_type (di), NULL); + break; -/* Demangles and emits a . + case 'R': + d_advance (di, 1); + ret = d_make_comp (di, D_COMP_REFERENCE, d_type (di), NULL); + break; - ::= v # void - ::= w # wchar_t - ::= b # bool - ::= c # char - ::= a # signed char - ::= h # unsigned char - ::= s # short - ::= t # unsigned short - ::= i # int - ::= j # unsigned int - ::= l # long - ::= m # unsigned long - ::= x # long long, __int64 - ::= y # unsigned long long, __int64 - ::= n # __int128 - ::= o # unsigned __int128 - ::= f # float - ::= d # double - ::= e # long double, __float80 - ::= g # __float128 - ::= z # ellipsis - ::= u # vendor extended type */ + case 'C': + d_advance (di, 1); + ret = d_make_comp (di, D_COMP_COMPLEX, d_type (di), NULL); + break; -static status_t -demangle_builtin_type (dm) - demangling_t dm; -{ + case 'G': + d_advance (di, 1); + ret = d_make_comp (di, D_COMP_IMAGINARY, d_type (di), NULL); + break; - char code = peek_char (dm); + case 'U': + d_advance (di, 1); + ret = d_source_name (di); + ret = d_make_comp (di, D_COMP_VENDOR_TYPE_QUAL, d_type (di), ret); + break; - DEMANGLE_TRACE ("builtin-type", dm); + default: + return NULL; + } - if (code == 'u') + if (can_subst) { - advance_char (dm); - RETURN_IF_ERROR (demangle_source_name (dm)); - return STATUS_OK; + if (! d_add_substitution (di, ret)) + return NULL; } - else if (code >= 'a' && code <= 'z') - { - const char *type_name = builtin_type_names[code - 'a']; - if (type_name == NULL) - return "Unrecognized code."; - result_append (dm, type_name); - advance_char (dm); - return STATUS_OK; - } - else - return "Non-alphabetic code."; + return ret; } -/* Demangles all consecutive CV-qualifiers (const, volatile, and - restrict) at the current position. The qualifiers are appended to - QUALIFIERS. Returns STATUS_OK. */ +/* ::= [r] [V] [K] */ -static status_t -demangle_CV_qualifiers (dm, qualifiers) - demangling_t dm; - dyn_string_t qualifiers; +static struct d_comp ** +d_cv_qualifiers (di, pret, member_fn) + struct d_info *di; + struct d_comp **pret; + int member_fn; { - DEMANGLE_TRACE ("CV-qualifiers", dm); + char peek; - while (1) + peek = d_peek_char (di); + while (peek == 'r' || peek == 'V' || peek == 'K') { - switch (peek_char (dm)) - { - case 'r': - dyn_string_append_space (qualifiers); - dyn_string_append_cstr (qualifiers, "restrict"); - break; + enum d_comp_type t; - case 'V': - dyn_string_append_space (qualifiers); - dyn_string_append_cstr (qualifiers, "volatile"); - break; + d_advance (di, 1); + if (peek == 'r') + { + t = member_fn ? D_COMP_RESTRICT_THIS : D_COMP_RESTRICT; + di->expansion += sizeof "restrict"; + } + else if (peek == 'V') + { + t = member_fn ? D_COMP_VOLATILE_THIS : D_COMP_VOLATILE; + di->expansion += sizeof "volatile"; + } + else + { + t = member_fn ? D_COMP_CONST_THIS : D_COMP_CONST; + di->expansion += sizeof "const"; + } + + *pret = d_make_comp (di, t, NULL, NULL); + if (*pret == NULL) + return NULL; + pret = &d_left (*pret); + + peek = d_peek_char (di); + } + + return pret; +} + +/* ::= F [Y] E */ + +static struct d_comp * +d_function_type (di) + struct d_info *di; +{ + struct d_comp *ret; + + if (d_next_char (di) != 'F') + return NULL; + if (d_peek_char (di) == 'Y') + { + /* Function has C linkage. We don't print this information. + FIXME: We should print it in verbose mode. */ + d_advance (di, 1); + } + ret = d_bare_function_type (di, 1); + if (d_next_char (di) != 'E') + return NULL; + return ret; +} + +/* ::= + */ + +static struct d_comp * +d_bare_function_type (di, has_return_type) + struct d_info *di; + int has_return_type; +{ + struct d_comp *return_type; + struct d_comp *tl; + struct d_comp **ptl; + + return_type = NULL; + tl = NULL; + ptl = &tl; + while (1) + { + char peek; + struct d_comp *type; + + peek = d_peek_char (di); + if (peek == '\0' || peek == 'E') + break; + type = d_type (di); + if (type == NULL) + return NULL; + if (has_return_type) + { + return_type = type; + has_return_type = 0; + } + else + { + *ptl = d_make_comp (di, D_COMP_ARGLIST, type, NULL); + if (*ptl == NULL) + return NULL; + ptl = &d_right (*ptl); + } + } + + /* There should be at least one parameter type besides the optional + return type. A function which takes no arguments will have a + single parameter type void. */ + if (tl == NULL) + return NULL; + + /* If we have a single parameter type void, omit it. */ + if (d_right (tl) == NULL + && d_left (tl)->type == D_COMP_BUILTIN_TYPE + && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID) + { + di->expansion -= d_left (tl)->u.s_builtin.type->len; + tl = NULL; + } + + return d_make_comp (di, D_COMP_FUNCTION_TYPE, return_type, tl); +} + +/* ::= */ + +static struct d_comp * +d_class_enum_type (di) + struct d_info *di; +{ + return d_name (di); +} + +/* ::= A <(positive dimension) number> _ <(element) type> + ::= A [<(dimension) expression>] _ <(element) type> +*/ + +static struct d_comp * +d_array_type (di) + struct d_info *di; +{ + char peek; + struct d_comp *dim; + + if (d_next_char (di) != 'A') + return NULL; + + peek = d_peek_char (di); + if (peek == '_') + dim = NULL; + else if (IS_DIGIT (peek)) + { + const char *s; + + s = d_str (di); + do + { + d_advance (di, 1); + peek = d_peek_char (di); + } + while (IS_DIGIT (peek)); + dim = d_make_name (di, s, d_str (di) - s); + if (dim == NULL) + return NULL; + } + else + { + dim = d_expression (di); + if (dim == NULL) + return NULL; + } + + if (d_next_char (di) != '_') + return NULL; + + return d_make_comp (di, D_COMP_ARRAY_TYPE, dim, d_type (di)); +} + +/* ::= M <(class) type> <(member) type> */ + +static struct d_comp * +d_pointer_to_member_type (di) + struct d_info *di; +{ + struct d_comp *cl; + struct d_comp *mem; + struct d_comp **pmem; + + if (d_next_char (di) != 'M') + return NULL; + + cl = d_type (di); + + /* The ABI specifies that any type can be a substitution source, and + that M is followed by two types, and that when a CV-qualified + type is seen both the base type and the CV-qualified types are + substitution sources. The ABI also specifies that for a pointer + to a CV-qualified member function, the qualifiers are attached to + the second type. Given the grammar, a plain reading of the ABI + suggests that both the CV-qualified member function and the + non-qualified member function are substitution sources. However, + g++ does not work that way. g++ treats only the CV-qualified + member function as a substitution source. FIXME. So to work + with g++, we need to pull off the CV-qualifiers here, in order to + avoid calling add_substitution() in d_type(). */ + + pmem = d_cv_qualifiers (di, &mem, 1); + if (pmem == NULL) + return NULL; + *pmem = d_type (di); + + return d_make_comp (di, D_COMP_PTRMEM_TYPE, cl, mem); +} + +/* ::= T_ + ::= T <(parameter-2 non-negative) number> _ +*/ + +static struct d_comp * +d_template_param (di) + struct d_info *di; +{ + long param; + + if (d_next_char (di) != 'T') + return NULL; + + if (d_peek_char (di) == '_') + param = 0; + else + { + param = d_number (di); + if (param < 0) + return NULL; + param += 1; + } + + if (d_next_char (di) != '_') + return NULL; + + ++di->did_subs; + + return d_make_template_param (di, param); +} + +/* ::= I + E */ + +static struct d_comp * +d_template_args (di) + struct d_info *di; +{ + struct d_comp *hold_last_name; + struct d_comp *al; + struct d_comp **pal; + + /* Preserve the last name we saw--don't let the template arguments + clobber it, as that would give us the wrong name for a subsequent + constructor or destructor. */ + hold_last_name = di->last_name; + + if (d_next_char (di) != 'I') + return NULL; + + al = NULL; + pal = &al; + while (1) + { + struct d_comp *a; + + a = d_template_arg (di); + if (a == NULL) + return NULL; + + *pal = d_make_comp (di, D_COMP_TEMPLATE_ARGLIST, a, NULL); + if (*pal == NULL) + return NULL; + pal = &d_right (*pal); + + if (d_peek_char (di) == 'E') + { + d_advance (di, 1); + break; + } + } + + di->last_name = hold_last_name; + + return al; +} + +/* ::= + ::= X E + ::= +*/ + +static struct d_comp * +d_template_arg (di) + struct d_info *di; +{ + struct d_comp *ret; + + switch (d_peek_char (di)) + { + case 'X': + d_advance (di, 1); + ret = d_expression (di); + if (d_next_char (di) != 'E') + return NULL; + return ret; + + case 'L': + return d_expr_primary (di); + + default: + return d_type (di); + } +} + +/* ::= <(unary) operator-name> + ::= <(binary) operator-name> + ::= <(trinary) operator-name> + ::= st + ::= + ::= sr + ::= sr + ::= +*/ + +static struct d_comp * +d_expression (di) + struct d_info *di; +{ + char peek; + + peek = d_peek_char (di); + if (peek == 'L') + return d_expr_primary (di); + else if (peek == 'T') + return d_template_param (di); + else if (peek == 's' && d_peek_next_char (di) == 'r') + { + struct d_comp *type; + struct d_comp *name; + + d_advance (di, 2); + type = d_type (di); + name = d_unqualified_name (di); + if (d_peek_char (di) != 'I') + return d_make_comp (di, D_COMP_QUAL_NAME, type, name); + else + return d_make_comp (di, D_COMP_QUAL_NAME, type, + d_make_comp (di, D_COMP_TEMPLATE, name, + d_template_args (di))); + } + else + { + struct d_comp *op; + int args; + + op = d_operator_name (di); + if (op == NULL) + return NULL; + + if (op->type == D_COMP_OPERATOR) + di->expansion += op->u.s_operator.op->len - 2; + + if (op->type == D_COMP_OPERATOR + && strcmp (op->u.s_operator.op->code, "st") == 0) + return d_make_comp (di, D_COMP_UNARY, op, d_type (di)); + + switch (op->type) + { + default: + return NULL; + case D_COMP_OPERATOR: + args = op->u.s_operator.op->args; + break; + case D_COMP_EXTENDED_OPERATOR: + args = op->u.s_extended_operator.args; + break; + case D_COMP_CAST: + args = 1; + break; + } + + switch (args) + { + case 1: + return d_make_comp (di, D_COMP_UNARY, op, d_expression (di)); + case 2: + { + struct d_comp *left; + + left = d_expression (di); + return d_make_comp (di, D_COMP_BINARY, op, + d_make_comp (di, D_COMP_BINARY_ARGS, left, + d_expression (di))); + } + case 3: + { + struct d_comp *first; + struct d_comp *second; + + first = d_expression (di); + second = d_expression (di); + return d_make_comp (di, D_COMP_TRINARY, op, + d_make_comp (di, D_COMP_TRINARY_ARG1, first, + d_make_comp (di, + D_COMP_TRINARY_ARG2, + second, + d_expression (di)))); + } + default: + return NULL; + } + } +} + +/* ::= L <(value) number> E + ::= L <(value) float> E + ::= L E +*/ + +static struct d_comp * +d_expr_primary (di) + struct d_info *di; +{ + struct d_comp *ret; + + if (d_next_char (di) != 'L') + return NULL; + if (d_peek_char (di) == '_') + ret = d_mangled_name (di, 0); + else + { + struct d_comp *type; + enum d_comp_type t; + const char *s; + + type = d_type (di); + + /* If we have a type we know how to print, we aren't going to + print the type name itself. */ + if (type->type == D_COMP_BUILTIN_TYPE + && type->u.s_builtin.type->print != D_PRINT_DEFAULT) + di->expansion -= type->u.s_builtin.type->len; + + /* Rather than try to interpret the literal value, we just + collect it as a string. Note that it's possible to have a + floating point literal here. The ABI specifies that the + format of such literals is machine independent. That's fine, + but what's not fine is that versions of g++ up to 3.2 with + -fabi-version=1 used upper case letters in the hex constant, + and dumped out gcc's internal representation. That makes it + hard to tell where the constant ends, and hard to dump the + constant in any readable form anyhow. We don't attempt to + handle these cases. */ + + t = D_COMP_LITERAL; + if (d_peek_char (di) == 'n') + { + t = D_COMP_LITERAL_NEG; + d_advance (di, 1); + } + s = d_str (di); + while (d_peek_char (di) != 'E') + d_advance (di, 1); + ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s)); + } + if (d_next_char (di) != 'E') + return NULL; + return ret; +} + +/* ::= Z <(function) encoding> E <(entity) name> [] + ::= Z <(function) encoding> E s [] +*/ + +static struct d_comp * +d_local_name (di) + struct d_info *di; +{ + struct d_comp *function; + + if (d_next_char (di) != 'Z') + return NULL; + + function = d_encoding (di, 0); + + if (d_next_char (di) != 'E') + return NULL; + + if (d_peek_char (di) == 's') + { + d_advance (di, 1); + if (! d_discriminator (di)) + return NULL; + return d_make_comp (di, D_COMP_LOCAL_NAME, function, + d_make_name (di, "string literal", + sizeof "string literal" - 1)); + } + else + { + struct d_comp *name; + + name = d_name (di); + if (! d_discriminator (di)) + return NULL; + return d_make_comp (di, D_COMP_LOCAL_NAME, function, name); + } +} + +/* ::= _ <(non-negative) number> + + We demangle the discriminator, but we don't print it out. FIXME: + We should print it out in verbose mode. */ + +static int +d_discriminator (di) + struct d_info *di; +{ + long discrim; + + if (d_peek_char (di) != '_') + return 1; + d_advance (di, 1); + discrim = d_number (di); + if (discrim < 0) + return 0; + return 1; +} + +/* Add a new substitution. */ + +static int +d_add_substitution (di, dc) + struct d_info *di; + struct d_comp *dc; +{ + if (dc == NULL) + return 0; + if (di->next_sub >= di->num_subs) + return 0; + di->subs[di->next_sub] = dc; + ++di->next_sub; + return 1; +} + +/* ::= S _ + ::= S_ + ::= St + ::= Sa + ::= Sb + ::= Ss + ::= Si + ::= So + ::= Sd + + If PREFIX is non-zero, then this type is being used as a prefix in + a qualified name. In this case, for the standard substitutions, we + need to check whether we are being used as a prefix for a + constructor or destructor, and return a full template name. + Otherwise we will get something like std::iostream::~iostream() + which does not correspond particularly well to any function which + actually appears in the source. +*/ + +static const struct d_standard_sub_info standard_subs[] = +{ + { 't', NL ("std"), + NL ("std"), + NULL, 0 }, + { 'a', NL ("std::allocator"), + NL ("std::allocator"), + NL ("allocator") }, + { 'b', NL ("std::basic_string"), + NL ("std::basic_string"), + NL ("basic_string") }, + { 's', NL ("std::string"), + NL ("std::basic_string, std::allocator >"), + NL ("basic_string") }, + { 'i', NL ("std::istream"), + NL ("std::basic_istream >"), + NL ("basic_istream") }, + { 'o', NL ("std::ostream"), + NL ("std::basic_ostream >"), + NL ("basic_ostream") }, + { 'd', NL ("std::iostream"), + NL ("std::basic_iostream >"), + NL ("basic_iostream") } +}; + +static struct d_comp * +d_substitution (di, prefix) + struct d_info *di; + int prefix; +{ + char c; + + if (d_next_char (di) != 'S') + return NULL; + + c = d_next_char (di); + if (c == '_' || IS_DIGIT (c) || IS_UPPER (c)) + { + int id; + + id = 0; + if (c != '_') + { + do + { + if (IS_DIGIT (c)) + id = id * 36 + c - '0'; + else if (IS_UPPER (c)) + id = id * 36 + c - 'A' + 10; + else + return NULL; + c = d_next_char (di); + } + while (c != '_'); + + ++id; + } + + if (id >= di->next_sub) + return NULL; + + ++di->did_subs; + + return di->subs[id]; + } + else + { + int verbose; + const struct d_standard_sub_info *p; + const struct d_standard_sub_info *pend; + + verbose = (di->options & DMGL_VERBOSE) != 0; + if (! verbose && prefix) + { + char peek; + + peek = d_peek_char (di); + if (peek == 'C' || peek == 'D') + verbose = 1; + } + + pend = (&standard_subs[0] + + sizeof standard_subs / sizeof standard_subs[0]); + for (p = &standard_subs[0]; p < pend; ++p) + { + if (c == p->code) + { + const char *s; + int len; + + if (p->set_last_name != NULL) + di->last_name = d_make_sub (di, p->set_last_name, + p->set_last_name_len); + if (verbose) + { + s = p->full_expansion; + len = p->full_len; + } + else + { + s = p->simple_expansion; + len = p->simple_len; + } + di->expansion += len; + return d_make_sub (di, s, len); + } + } + + return NULL; + } +} + +/* Resize the print buffer. */ + +static void +d_print_resize (dpi, add) + struct d_print_info *dpi; + size_t add; +{ + size_t need; + + if (dpi->buf == NULL) + return; + need = dpi->len + add; + while (need > dpi->alc) + { + size_t newalc; + char *newbuf; + + newalc = dpi->alc * 2; + newbuf = realloc (dpi->buf, newalc); + if (newbuf == NULL) + { + free (dpi->buf); + dpi->buf = NULL; + dpi->allocation_failure = 1; + return; + } + dpi->buf = newbuf; + dpi->alc = newalc; + } +} + +/* Append a character to the print buffer. */ + +static void +d_print_append_char (dpi, c) + struct d_print_info *dpi; + int c; +{ + if (dpi->buf != NULL) + { + if (dpi->len >= dpi->alc) + { + d_print_resize (dpi, 1); + if (dpi->buf == NULL) + return; + } + + dpi->buf[dpi->len] = c; + ++dpi->len; + } +} + +/* Append a buffer to the print buffer. */ + +static void +d_print_append_buffer (dpi, s, l) + struct d_print_info *dpi; + const char *s; + size_t l; +{ + if (dpi->buf != NULL) + { + if (dpi->len + l > dpi->alc) + { + d_print_resize (dpi, l); + if (dpi->buf == NULL) + return; + } + + memcpy (dpi->buf + dpi->len, s, l); + dpi->len += l; + } +} + +/* Indicate that an error occurred during printing. */ + +static void +d_print_error (dpi) + struct d_print_info *dpi; +{ + free (dpi->buf); + dpi->buf = NULL; +} + +/* Turn components into a human readable string. OPTIONS is the + options bits passed to the demangler. DC is the tree to print. + ESTIMATE is a guess at the length of the result. This returns a + string allocated by malloc, or NULL on error. On success, this + sets *PALC to the size of the allocated buffer. On failure, this + sets *PALC to 0 for a bad parse, or to 1 for a memory allocation + failure. */ + +static char * +d_print (options, dc, estimate, palc) + int options; + const struct d_comp *dc; + int estimate; + size_t *palc; +{ + struct d_print_info dpi; + + dpi.options = options; + + dpi.alc = estimate + 1; + dpi.buf = malloc (dpi.alc); + if (dpi.buf == NULL) + { + *palc = 1; + return NULL; + } + + dpi.len = 0; + dpi.templates = NULL; + dpi.modifiers = NULL; + + dpi.allocation_failure = 0; + + d_print_comp (&dpi, dc); + + d_append_char (&dpi, '\0'); + + if (dpi.buf != NULL) + *palc = dpi.alc; + else + *palc = dpi.allocation_failure; + + return dpi.buf; +} + +/* Subroutine to handle components. */ + +static void +d_print_comp (dpi, dc) + struct d_print_info *dpi; + const struct d_comp *dc; +{ + if (dc == NULL) + { + d_print_error (dpi); + return; + } + if (d_print_saw_error (dpi)) + return; + + switch (dc->type) + { + case D_COMP_NAME: + if ((dpi->options & DMGL_JAVA) == 0) + d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len); + else + d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len); + return; + + case D_COMP_QUAL_NAME: + case D_COMP_LOCAL_NAME: + d_print_comp (dpi, d_left (dc)); + if ((dpi->options & DMGL_JAVA) == 0) + d_append_string_constant (dpi, "::"); + else + d_append_char (dpi, '.'); + d_print_comp (dpi, d_right (dc)); + return; + + case D_COMP_TYPED_NAME: + { + struct d_print_mod *hold_modifiers; + struct d_comp *typed_name; + struct d_print_mod adpm[4]; + unsigned int i; + struct d_print_template dpt; + + /* Pass the name down to the type so that it can be printed in + the right place for the type. We also have to pass down + any CV-qualifiers, which apply to the this parameter. */ + hold_modifiers = dpi->modifiers; + i = 0; + typed_name = d_left (dc); + while (typed_name != NULL) + { + if (i >= sizeof adpm / sizeof adpm[0]) + { + d_print_error (dpi); + return; + } + + adpm[i].next = dpi->modifiers; + dpi->modifiers = &adpm[i]; + adpm[i].mod = typed_name; + adpm[i].printed = 0; + adpm[i].templates = dpi->templates; + ++i; + + if (typed_name->type != D_COMP_RESTRICT_THIS + && typed_name->type != D_COMP_VOLATILE_THIS + && typed_name->type != D_COMP_CONST_THIS) + break; + + typed_name = d_left (typed_name); + } + + /* If typed_name is a template, then it applies to the + function type as well. */ + if (typed_name->type == D_COMP_TEMPLATE) + { + dpt.next = dpi->templates; + dpi->templates = &dpt; + dpt.template = typed_name; + } + + /* If typed_name is a D_COMP_LOCAL_NAME, then there may be + CV-qualifiers on its right argument which really apply + here; this happens when parsing a class which is local to a + function. */ + if (typed_name->type == D_COMP_LOCAL_NAME) + { + struct d_comp *local_name; + + local_name = d_right (typed_name); + while (local_name->type == D_COMP_RESTRICT_THIS + || local_name->type == D_COMP_VOLATILE_THIS + || local_name->type == D_COMP_CONST_THIS) + { + if (i >= sizeof adpm / sizeof adpm[0]) + { + d_print_error (dpi); + return; + } + + adpm[i] = adpm[i - 1]; + adpm[i].next = &adpm[i - 1]; + dpi->modifiers = &adpm[i]; + + adpm[i - 1].mod = local_name; + adpm[i - 1].printed = 0; + adpm[i - 1].templates = dpi->templates; + ++i; + + local_name = d_left (local_name); + } + } + + d_print_comp (dpi, d_right (dc)); + + if (typed_name->type == D_COMP_TEMPLATE) + dpi->templates = dpt.next; + + /* If the modifiers didn't get printed by the type, print them + now. */ + while (i > 0) + { + --i; + if (! adpm[i].printed) + { + d_append_char (dpi, ' '); + d_print_mod (dpi, adpm[i].mod); + } + } + + dpi->modifiers = hold_modifiers; + + return; + } + + case D_COMP_TEMPLATE: + { + struct d_print_mod *hold_dpm; + + /* Don't push modifiers into a template definition. Doing so + could give the wrong definition for a template argument. + Instead, treat the template essentially as a name. */ + + hold_dpm = dpi->modifiers; + dpi->modifiers = NULL; + + d_print_comp (dpi, d_left (dc)); + if (d_last_char (dpi) == '<') + d_append_char (dpi, ' '); + d_append_char (dpi, '<'); + d_print_comp (dpi, d_right (dc)); + /* Avoid generating two consecutive '>' characters, to avoid + the C++ syntactic ambiguity. */ + if (d_last_char (dpi) == '>') + d_append_char (dpi, ' '); + d_append_char (dpi, '>'); + + dpi->modifiers = hold_dpm; + + return; + } + + case D_COMP_TEMPLATE_PARAM: + { + long i; + struct d_comp *a; + struct d_print_template *hold_dpt; + + if (dpi->templates == NULL) + { + d_print_error (dpi); + return; + } + i = dc->u.s_number.number; + for (a = d_right (dpi->templates->template); + a != NULL; + a = d_right (a)) + { + if (a->type != D_COMP_TEMPLATE_ARGLIST) + { + d_print_error (dpi); + return; + } + if (i <= 0) + break; + --i; + } + if (i != 0 || a == NULL) + { + d_print_error (dpi); + return; + } + + /* While processing this parameter, we need to pop the list of + templates. This is because the template parameter may + itself be a reference to a parameter of an outer + template. */ + + hold_dpt = dpi->templates; + dpi->templates = hold_dpt->next; + + d_print_comp (dpi, d_left (a)); + + dpi->templates = hold_dpt; + + return; + } + + case D_COMP_CTOR: + d_print_comp (dpi, dc->u.s_ctor.name); + return; + + case D_COMP_DTOR: + d_append_char (dpi, '~'); + d_print_comp (dpi, dc->u.s_dtor.name); + return; + + case D_COMP_VTABLE: + d_append_string_constant (dpi, "vtable for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_VTT: + d_append_string_constant (dpi, "VTT for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_CONSTRUCTION_VTABLE: + d_append_string_constant (dpi, "construction vtable for "); + d_print_comp (dpi, d_left (dc)); + d_append_string_constant (dpi, "-in-"); + d_print_comp (dpi, d_right (dc)); + return; + + case D_COMP_TYPEINFO: + d_append_string_constant (dpi, "typeinfo for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_TYPEINFO_NAME: + d_append_string_constant (dpi, "typeinfo name for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_TYPEINFO_FN: + d_append_string_constant (dpi, "typeinfo fn for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_THUNK: + d_append_string_constant (dpi, "non-virtual thunk to "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_VIRTUAL_THUNK: + d_append_string_constant (dpi, "virtual thunk to "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_COVARIANT_THUNK: + d_append_string_constant (dpi, "covariant return thunk to "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_JAVA_CLASS: + d_append_string_constant (dpi, "java Class for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_GUARD: + d_append_string_constant (dpi, "guard variable for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_REFTEMP: + d_append_string_constant (dpi, "reference temporary for "); + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_SUB_STD: + d_append_buffer (dpi, dc->u.s_string.string, dc->u.s_string.len); + return; + + case D_COMP_RESTRICT: + case D_COMP_VOLATILE: + case D_COMP_CONST: + case D_COMP_RESTRICT_THIS: + case D_COMP_VOLATILE_THIS: + case D_COMP_CONST_THIS: + case D_COMP_VENDOR_TYPE_QUAL: + case D_COMP_POINTER: + case D_COMP_REFERENCE: + case D_COMP_COMPLEX: + case D_COMP_IMAGINARY: + { + /* We keep a list of modifiers on the stack. */ + struct d_print_mod dpm; + + dpm.next = dpi->modifiers; + dpi->modifiers = &dpm; + dpm.mod = dc; + dpm.printed = 0; + dpm.templates = dpi->templates; + + d_print_comp (dpi, d_left (dc)); + + /* If the modifier didn't get printed by the type, print it + now. */ + if (! dpm.printed) + d_print_mod (dpi, dc); + + dpi->modifiers = dpm.next; + + return; + } + + case D_COMP_BUILTIN_TYPE: + if ((dpi->options & DMGL_JAVA) == 0) + d_append_buffer (dpi, dc->u.s_builtin.type->name, + dc->u.s_builtin.type->len); + else + d_append_buffer (dpi, dc->u.s_builtin.type->java_name, + dc->u.s_builtin.type->java_len); + return; + + case D_COMP_VENDOR_TYPE: + d_print_comp (dpi, d_left (dc)); + return; + + case D_COMP_FUNCTION_TYPE: + { + if (d_left (dc) != NULL) + { + struct d_print_mod dpm; + + /* We must pass this type down as a modifier in order to + print it in the right location. */ + + dpm.next = dpi->modifiers; + dpi->modifiers = &dpm; + dpm.mod = dc; + dpm.printed = 0; + dpm.templates = dpi->templates; + + d_print_comp (dpi, d_left (dc)); + + dpi->modifiers = dpm.next; + + if (dpm.printed) + return; + + d_append_char (dpi, ' '); + } + + d_print_function_type (dpi, dc, dpi->modifiers); + + return; + } + + case D_COMP_ARRAY_TYPE: + { + struct d_print_mod dpm; + + /* We must pass this type down as a modifier in order to print + multi-dimensional arrays correctly. */ + + dpm.next = dpi->modifiers; + dpi->modifiers = &dpm; + dpm.mod = dc; + dpm.printed = 0; + dpm.templates = dpi->templates; + + d_print_comp (dpi, d_right (dc)); + + dpi->modifiers = dpm.next; + + if (dpm.printed) + return; + + d_print_array_type (dpi, dc, dpi->modifiers); + + return; + } + + case D_COMP_PTRMEM_TYPE: + { + struct d_print_mod dpm; + + dpm.next = dpi->modifiers; + dpi->modifiers = &dpm; + dpm.mod = dc; + dpm.printed = 0; + dpm.templates = dpi->templates; + + d_print_comp (dpi, d_right (dc)); + + /* If the modifier didn't get printed by the type, print it + now. */ + if (! dpm.printed) + { + d_append_char (dpi, ' '); + d_print_comp (dpi, d_left (dc)); + d_append_string_constant (dpi, "::*"); + } + + dpi->modifiers = dpm.next; + + return; + } + + case D_COMP_ARGLIST: + case D_COMP_TEMPLATE_ARGLIST: + d_print_comp (dpi, d_left (dc)); + if (d_right (dc) != NULL) + { + d_append_string_constant (dpi, ", "); + d_print_comp (dpi, d_right (dc)); + } + return; + + case D_COMP_OPERATOR: + { + char c; + + d_append_string_constant (dpi, "operator"); + c = dc->u.s_operator.op->name[0]; + if (IS_LOWER (c)) + d_append_char (dpi, ' '); + d_append_buffer (dpi, dc->u.s_operator.op->name, + dc->u.s_operator.op->len); + return; + } + + case D_COMP_EXTENDED_OPERATOR: + d_append_string_constant (dpi, "operator "); + d_print_comp (dpi, dc->u.s_extended_operator.name); + return; + + case D_COMP_CAST: + d_append_string_constant (dpi, "operator "); + d_print_cast (dpi, dc); + return; + + case D_COMP_UNARY: + if (d_left (dc)->type != D_COMP_CAST) + d_print_expr_op (dpi, d_left (dc)); + else + { + d_append_string_constant (dpi, "(("); + d_print_cast (dpi, d_left (dc)); + d_append_char (dpi, ')'); + } + d_append_char (dpi, '('); + d_print_comp (dpi, d_right (dc)); + d_append_char (dpi, ')'); + if (d_left (dc)->type == D_COMP_CAST) + d_append_char (dpi, ')'); + return; + + case D_COMP_BINARY: + if (d_right (dc)->type != D_COMP_BINARY_ARGS) + { + d_print_error (dpi); + return; + } + + /* We wrap an expression which uses the greater-than operator in + an extra layer of parens so that it does not get confused + with the '>' which ends the template parameters. */ + if (d_left (dc)->type == D_COMP_OPERATOR + && d_left (dc)->u.s_operator.op->len == 1 + && d_left (dc)->u.s_operator.op->name[0] == '>') + d_append_char (dpi, '('); + + d_append_char (dpi, '('); + d_print_comp (dpi, d_left (d_right (dc))); + d_append_string_constant (dpi, ") "); + d_print_expr_op (dpi, d_left (dc)); + d_append_string_constant (dpi, " ("); + d_print_comp (dpi, d_right (d_right (dc))); + d_append_char (dpi, ')'); + + if (d_left (dc)->type == D_COMP_OPERATOR + && d_left (dc)->u.s_operator.op->len == 1 + && d_left (dc)->u.s_operator.op->name[0] == '>') + d_append_char (dpi, ')'); + + return; + + case D_COMP_BINARY_ARGS: + /* We should only see this as part of D_COMP_BINARY. */ + d_print_error (dpi); + return; + + case D_COMP_TRINARY: + if (d_right (dc)->type != D_COMP_TRINARY_ARG1 + || d_right (d_right (dc))->type != D_COMP_TRINARY_ARG2) + { + d_print_error (dpi); + return; + } + d_append_char (dpi, '('); + d_print_comp (dpi, d_left (d_right (dc))); + d_append_string_constant (dpi, ") "); + d_print_expr_op (dpi, d_left (dc)); + d_append_string_constant (dpi, " ("); + d_print_comp (dpi, d_left (d_right (d_right (dc)))); + d_append_string_constant (dpi, ") : ("); + d_print_comp (dpi, d_right (d_right (d_right (dc)))); + d_append_char (dpi, ')'); + return; + + case D_COMP_TRINARY_ARG1: + case D_COMP_TRINARY_ARG2: + /* We should only see these are part of D_COMP_TRINARY. */ + d_print_error (dpi); + return; + + case D_COMP_LITERAL: + case D_COMP_LITERAL_NEG: + /* For some builtin types, produce simpler output. */ + if (d_left (dc)->type == D_COMP_BUILTIN_TYPE) + { + switch (d_left (dc)->u.s_builtin.type->print) + { + case D_PRINT_INT: + if (d_right (dc)->type == D_COMP_NAME) + { + if (dc->type == D_COMP_LITERAL_NEG) + d_append_char (dpi, '-'); + d_print_comp (dpi, d_right (dc)); + return; + } + break; + + case D_PRINT_LONG: + if (d_right (dc)->type == D_COMP_NAME) + { + if (dc->type == D_COMP_LITERAL_NEG) + d_append_char (dpi, '-'); + d_print_comp (dpi, d_right (dc)); + d_append_char (dpi, 'l'); + return; + } + break; + + case D_PRINT_BOOL: + if (d_right (dc)->type == D_COMP_NAME + && d_right (dc)->u.s_name.len == 1 + && dc->type == D_COMP_LITERAL) + { + switch (d_right (dc)->u.s_name.s[0]) + { + case '0': + d_append_string_constant (dpi, "false"); + return; + case '1': + d_append_string_constant (dpi, "true"); + return; + default: + break; + } + } + break; + + default: + break; + } + } + + d_append_char (dpi, '('); + d_print_comp (dpi, d_left (dc)); + d_append_char (dpi, ')'); + if (dc->type == D_COMP_LITERAL_NEG) + d_append_char (dpi, '-'); + d_print_comp (dpi, d_right (dc)); + return; + + default: + d_print_error (dpi); + return; + } +} + +/* Print a Java dentifier. For Java we try to handle encoded extended + Unicode characters. The C++ ABI doesn't mention Unicode encoding, + so we don't it for C++. Characters are encoded as + __U+_. */ + +static void +d_print_java_identifier (dpi, name, len) + struct d_print_info *dpi; + const char *name; + int len; +{ + const char *p; + const char *end; + + end = name + len; + for (p = name; p < end; ++p) + { + if (end - p > 3 + && p[0] == '_' + && p[1] == '_' + && p[2] == 'U') + { + unsigned long c; + const char *q; + + c = 0; + for (q = p + 3; q < end; ++q) + { + int dig; + + if (IS_DIGIT (*q)) + dig = *q - '0'; + else if (*q >= 'A' && *q <= 'F') + dig = *q - 'A' + 10; + else if (*q >= 'a' && *q <= 'f') + dig = *q - 'a' + 10; + else + break; + + c = c * 16 + dig; + } + /* If the Unicode character is larger than 256, we don't try + to deal with it here. FIXME. */ + if (q < end && *q == '_' && c < 256) + { + d_append_char (dpi, c); + p = q; + continue; + } + } + + d_append_char (dpi, *p); + } +} + +/* Print a list of modifiers. SUFFIX is 1 if we are printing + qualifiers on this after printing a function. */ + +static void +d_print_mod_list (dpi, mods, suffix) + struct d_print_info *dpi; + struct d_print_mod *mods; + int suffix; +{ + struct d_print_template *hold_dpt; + + if (mods == NULL || d_print_saw_error (dpi)) + return; + + if (mods->printed + || (! suffix + && (mods->mod->type == D_COMP_RESTRICT_THIS + || mods->mod->type == D_COMP_VOLATILE_THIS + || mods->mod->type == D_COMP_CONST_THIS))) + { + d_print_mod_list (dpi, mods->next, suffix); + return; + } + + mods->printed = 1; + + hold_dpt = dpi->templates; + dpi->templates = mods->templates; + + if (mods->mod->type == D_COMP_FUNCTION_TYPE) + { + d_print_function_type (dpi, mods->mod, mods->next); + dpi->templates = hold_dpt; + return; + } + else if (mods->mod->type == D_COMP_ARRAY_TYPE) + { + d_print_array_type (dpi, mods->mod, mods->next); + dpi->templates = hold_dpt; + return; + } + else if (mods->mod->type == D_COMP_LOCAL_NAME) + { + struct d_print_mod *hold_modifiers; + struct d_comp *dc; + + /* When this is on the modifier stack, we have pulled any + qualifiers off the right argument already. Otherwise, we + print it as usual, but don't let the left argument see any + modifiers. */ + + hold_modifiers = dpi->modifiers; + dpi->modifiers = NULL; + d_print_comp (dpi, d_left (mods->mod)); + dpi->modifiers = hold_modifiers; + + if ((dpi->options & DMGL_JAVA) == 0) + d_append_string_constant (dpi, "::"); + else + d_append_char (dpi, '.'); + + dc = d_right (mods->mod); + while (dc->type == D_COMP_RESTRICT_THIS + || dc->type == D_COMP_VOLATILE_THIS + || dc->type == D_COMP_CONST_THIS) + dc = d_left (dc); + + d_print_comp (dpi, dc); + + dpi->templates = hold_dpt; + return; + } + + d_print_mod (dpi, mods->mod); + + dpi->templates = hold_dpt; + + d_print_mod_list (dpi, mods->next, suffix); +} + +/* Print a modifier. */ + +static void +d_print_mod (dpi, mod) + struct d_print_info *dpi; + const struct d_comp *mod; +{ + switch (mod->type) + { + case D_COMP_RESTRICT: + case D_COMP_RESTRICT_THIS: + d_append_string_constant (dpi, " restrict"); + return; + case D_COMP_VOLATILE: + case D_COMP_VOLATILE_THIS: + d_append_string_constant (dpi, " volatile"); + return; + case D_COMP_CONST: + case D_COMP_CONST_THIS: + d_append_string_constant (dpi, " const"); + return; + case D_COMP_VENDOR_TYPE_QUAL: + d_append_char (dpi, ' '); + d_print_comp (dpi, d_right (mod)); + return; + case D_COMP_POINTER: + /* There is no pointer symbol in Java. */ + if ((dpi->options & DMGL_JAVA) == 0) + d_append_char (dpi, '*'); + return; + case D_COMP_REFERENCE: + d_append_char (dpi, '&'); + return; + case D_COMP_COMPLEX: + d_append_string_constant (dpi, "complex "); + return; + case D_COMP_IMAGINARY: + d_append_string_constant (dpi, "imaginary "); + return; + case D_COMP_PTRMEM_TYPE: + if (d_last_char (dpi) != '(') + d_append_char (dpi, ' '); + d_print_comp (dpi, d_left (mod)); + d_append_string_constant (dpi, "::*"); + return; + case D_COMP_TYPED_NAME: + d_print_comp (dpi, d_left (mod)); + return; + default: + /* Otherwise, we have something that won't go back on the + modifier stack, so we can just print it. */ + d_print_comp (dpi, mod); + return; + } +} + +/* Print a function type, except for the return type. */ + +static void +d_print_function_type (dpi, dc, mods) + struct d_print_info *dpi; + const struct d_comp *dc; + struct d_print_mod *mods; +{ + int need_paren; + int saw_mod; + struct d_print_mod *p; + struct d_print_mod *hold_modifiers; + + need_paren = 0; + saw_mod = 0; + for (p = mods; p != NULL; p = p->next) + { + if (p->printed) + break; + + saw_mod = 1; + switch (p->mod->type) + { + case D_COMP_RESTRICT: + case D_COMP_VOLATILE: + case D_COMP_CONST: + case D_COMP_VENDOR_TYPE_QUAL: + case D_COMP_POINTER: + case D_COMP_REFERENCE: + case D_COMP_COMPLEX: + case D_COMP_IMAGINARY: + case D_COMP_PTRMEM_TYPE: + need_paren = 1; + break; + case D_COMP_RESTRICT_THIS: + case D_COMP_VOLATILE_THIS: + case D_COMP_CONST_THIS: + break; + default: + break; + } + if (need_paren) + break; + } - case 'K': - dyn_string_append_space (qualifiers); - dyn_string_append_cstr (qualifiers, "const"); + if (d_left (dc) != NULL && ! saw_mod) + need_paren = 1; + + if (need_paren) + { + switch (d_last_char (dpi)) + { + case ' ': + case '(': + case '*': break; default: - return STATUS_OK; + d_append_char (dpi, ' '); + break; } - advance_char (dm); + d_append_char (dpi, '('); } -} -/* Demangles and emits a FUNCTION_NAME_POS is the - position in the result string of the start of the function - identifier, at which the function's return type will be inserted. + hold_modifiers = dpi->modifiers; + dpi->modifiers = NULL; - ::= F [Y] E */ + d_print_mod_list (dpi, mods, 0); -static status_t -demangle_function_type (dm, function_name_pos) - demangling_t dm; - int function_name_pos; -{ - DEMANGLE_TRACE ("function-type", dm); - RETURN_IF_ERROR (demangle_char (dm, 'F')); - if (peek_char (dm) == 'Y') - { - /* Indicate this function has C linkage if in verbose mode. */ - if (flag_verbose) - result_append (dm, " [extern \"C\"] "); - advance_char (dm); - } - RETURN_IF_ERROR (demangle_bare_function_type (dm, function_name_pos)); - RETURN_IF_ERROR (demangle_char (dm, 'E')); - return STATUS_OK; -} + if (need_paren) + d_append_char (dpi, ')'); -/* Demangles and emits a . RETURN_TYPE_POS is the - position in the result string at which the function return type - should be inserted. If RETURN_TYPE_POS is BFT_NO_RETURN_TYPE, the - function's return type is assumed not to be encoded. + d_append_char (dpi, '('); - ::= + */ + if (d_right (dc) != NULL) + d_print_comp (dpi, d_right (dc)); -static status_t -demangle_bare_function_type (dm, return_type_pos) - demangling_t dm; - int return_type_pos; -{ - /* Sequence is the index of the current function parameter, counting - from zero. The value -1 denotes the return type. */ - int sequence = - (return_type_pos == BFT_NO_RETURN_TYPE ? 0 : -1); + d_append_char (dpi, ')'); - DEMANGLE_TRACE ("bare-function-type", dm); + d_print_mod_list (dpi, mods, 1); - result_append_char (dm, '('); - while (!end_of_name_p (dm) && peek_char (dm) != 'E') - { - if (sequence == -1) - /* We're decoding the function's return type. */ - { - dyn_string_t return_type; + dpi->modifiers = hold_modifiers; +} - /* Decode the return type off to the side. */ - result_push (dm); - RETURN_IF_ERROR (demangle_type (dm)); - return_type = (dyn_string_t) result_pop (dm); +/* Print an array type, except for the element type. */ - /* Add a space to the end of the type. */ - dyn_string_append_space (return_type); +static void +d_print_array_type (dpi, dc, mods) + struct d_print_info *dpi; + const struct d_comp *dc; + struct d_print_mod *mods; +{ + int need_space; - /* Insert the return type where we've been asked to. */ - dyn_string_insert (result_string (dm), return_type_pos, - return_type); - dyn_string_delete (return_type); - } - else + need_space = 1; + if (mods != NULL) + { + int need_paren; + struct d_print_mod *p; + + need_paren = 0; + for (p = mods; p != NULL; p = p->next) { - /* Skip `void' parameter types. One should only occur as - the only type in a parameter list; in that case, we want - to print `foo ()' instead of `foo (void)'. */ - if (peek_char (dm) == 'v') + if (p->printed) + break; + + if (p->mod->type == D_COMP_ARRAY_TYPE) { - /* Consume the v. */ - advance_char (dm); - continue; + need_space = 0; + break; + } + else + { + need_paren = 1; + need_space = 1; + break; } - /* Separate parameter types by commas. */ - if (sequence > 0) - result_append (dm, ", "); - /* Demangle the type. */ - RETURN_IF_ERROR (demangle_type (dm)); } - ++sequence; - } - result_append_char (dm, ')'); + if (need_paren) + d_append_string_constant (dpi, " ("); - return STATUS_OK; -} + d_print_mod_list (dpi, mods, 0); -/* Demangles and emits a . *TEMPLATE_P is set to - non-zero if the type is a template-id, zero otherwise. + if (need_paren) + d_append_char (dpi, ')'); + } - ::= */ + if (need_space) + d_append_char (dpi, ' '); -static status_t -demangle_class_enum_type (dm, template_p) - demangling_t dm; - int *template_p; -{ - DEMANGLE_TRACE ("class-enum-type", dm); + d_append_char (dpi, '['); - RETURN_IF_ERROR (demangle_name (dm, template_p)); - return STATUS_OK; -} + if (d_left (dc) != NULL) + d_print_comp (dpi, d_left (dc)); -/* Demangles and emits an . + d_append_char (dpi, ']'); +} - ::= A [] _ */ +/* Print an operator in an expression. */ -static status_t -demangle_array_type (dm) - demangling_t dm; +static void +d_print_expr_op (dpi, dc) + struct d_print_info *dpi; + const struct d_comp *dc; { - dyn_string_t array_size = dyn_string_new (10); - - RETURN_IF_ERROR (demangle_char (dm, 'A')); - - /* Demangle the array size into array_size. */ - RETURN_IF_ERROR (demangle_number_literally (dm, array_size, 10, 0)); - - /* Demangle the base type of the array. */ - RETURN_IF_ERROR (demangle_char (dm, '_')); - RETURN_IF_ERROR (demangle_type (dm)); - - /* Emit the array dimension syntax. */ - result_append_char (dm, '['); - result_append_string (dm, array_size); - result_append_char (dm, ']'); - dyn_string_delete (array_size); - - return STATUS_OK; + if (dc->type == D_COMP_OPERATOR) + d_append_buffer (dpi, dc->u.s_operator.op->name, + dc->u.s_operator.op->len); + else + d_print_comp (dpi, dc); } -/* Demangles and emits a . The zero-indexed position - in the parameter list is placed in *TEMPLATE_PARM_NUMBER. +/* Print a cast. */ - ::= T_ # first template parameter - ::= T _ */ - -static status_t -demangle_template_param (dm, template_parm_number) - demangling_t dm; - int *template_parm_number; +static void +d_print_cast (dpi, dc) + struct d_print_info *dpi; + const struct d_comp *dc; { - int parm_number; - template_arg_list_t current_arg_list = current_template_arg_list (dm); - string_list_t arg; - - DEMANGLE_TRACE ("template-param", dm); - - /* Make sure there is a template argmust list in which to look up - this parameter reference. */ - if (current_arg_list == NULL) - return "Template parameter outside of template."; - - RETURN_IF_ERROR (demangle_char (dm, 'T')); - if (peek_char (dm) == '_') - parm_number = 0; + if (d_left (dc)->type != D_COMP_TEMPLATE) + d_print_comp (dpi, d_left (dc)); else { - RETURN_IF_ERROR (demangle_number (dm, &parm_number, 10, 0)); - ++parm_number; - } - RETURN_IF_ERROR (demangle_char (dm, '_')); - - arg = template_arg_list_get_arg (current_arg_list, parm_number); - if (arg == NULL) - /* parm_number exceeded the number of arguments in the current - template argument list. */ - return "Template parameter number out of bounds."; - result_append_string (dm, (dyn_string_t) arg); - - if (peek_char (dm) == 'I') - RETURN_IF_ERROR (demangle_template_args (dm)); - - *template_parm_number = parm_number; - return STATUS_OK; -} + struct d_print_mod *hold_dpm; + struct d_print_template dpt; -/* Demangles and emits a . + /* It appears that for a templated cast operator, we need to put + the template parameters in scope for the operator name, but + not for the parameters. The effect is that we need to handle + the template printing here. */ - ::= I + E */ + hold_dpm = dpi->modifiers; + dpi->modifiers = NULL; -static status_t -demangle_template_args (dm) - demangling_t dm; -{ - int first = 1; - template_arg_list_t arg_list = template_arg_list_new (); + dpt.next = dpi->templates; + dpi->templates = &dpt; + dpt.template = d_left (dc); - /* Preserve the most recently demangled source name. */ - dyn_string_t old_last_source_name = dm->last_source_name; - dm->last_source_name = dyn_string_new (0); + d_print_comp (dpi, d_left (d_left (dc))); - DEMANGLE_TRACE ("template-args", dm); + dpi->templates = dpt.next; - RETURN_IF_ERROR (demangle_char (dm, 'I')); - result_append_char (dm, '<'); - do - { - string_list_t arg; + if (d_last_char (dpi) == '<') + d_append_char (dpi, ' '); + d_append_char (dpi, '<'); + d_print_comp (dpi, d_right (d_left (dc))); + /* Avoid generating two consecutive '>' characters, to avoid + the C++ syntactic ambiguity. */ + if (d_last_char (dpi) == '>') + d_append_char (dpi, ' '); + d_append_char (dpi, '>'); - if (first) - first = 0; - else - result_append (dm, ", "); + dpi->modifiers = hold_dpm; + } +} - /* Capture the template arg. */ - result_push (dm); - RETURN_IF_ERROR (demangle_template_arg (dm)); - arg = result_pop (dm); +/* Initialize the information structure we use to pass around + information. */ - /* Emit it in the demangled name. */ - result_append_string (dm, (dyn_string_t) arg); +static void +d_init_info (mangled, options, len, di) + const char *mangled; + int options; + size_t len; + struct d_info *di; +{ + di->s = mangled; + di->send = mangled + len; + di->options = options; - /* Save it for use in expanding s. */ - template_arg_list_add_arg (arg_list, arg); - } - while (peek_char (dm) != 'E'); - /* Append the '>'. */ - result_close_template_list (dm); + di->n = mangled; - /* Consume the 'E'. */ - advance_char (dm); + /* We can not need more components than twice the number of chars in + the mangled string. Most components correspond directly to + chars, but the ARGLIST types are exceptions. */ + di->num_comps = 2 * len; + di->next_comp = 0; - /* Restore the most recent demangled source name. */ - dyn_string_delete (dm->last_source_name); - dm->last_source_name = old_last_source_name; + /* Similarly, we can not need more substitutions than there are + chars in the mangled string. */ + di->num_subs = len; + di->next_sub = 0; + di->did_subs = 0; - /* Push the list onto the top of the stack of template argument - lists, so that arguments from it are used from now on when - expanding s. */ - push_template_arg_list (dm, arg_list); + di->last_name = NULL; - return STATUS_OK; + di->expansion = 0; } -/* This function, which does not correspond to a production in the - mangling spec, handles the `literal' production for both - and . It does not expect or consume - the initial `L' or final `E'. The demangling is given by: +/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled + name, return a buffer allocated with malloc holding the demangled + name. OPTIONS is the usual libiberty demangler options. On + success, this sets *PALC to the allocated size of the returned + buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for + a memory allocation failure. On failure, this returns NULL. */ - ::= - - and the emitted output is `(type)number'. */ - -static status_t -demangle_literal (dm) - demangling_t dm; +static char * +d_demangle (mangled, options, palc) + const char* mangled; + int options; + size_t *palc; { - dyn_string_t value = dyn_string_new (0); - char peek = peek_char (dm); - - DEMANGLE_TRACE ("literal", dm); - - if (!flag_verbose && peek >= 'a' && peek <= 'z') + size_t len; + int type; + struct d_info di; + struct d_comp *dc; + int estimate; + char *ret; + + *palc = 0; + + len = strlen (mangled); + + if (mangled[0] == '_' && mangled[1] == 'Z') + type = 0; + else if (strncmp (mangled, "_GLOBAL_", 8) == 0 + && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$') + && (mangled[9] == 'D' || mangled[9] == 'I') + && mangled[10] == '_') { - /* If not in verbose mode and this is a builtin type, see if we - can produce simpler numerical output. In particular, for - integer types shorter than `long', just write the number - without type information; for bools, write `true' or `false'. - Other refinements could be made here too. */ - - /* This constant string is used to map from codes - (26 letters of the alphabet) to codes that determine how the - value will be displayed. The codes are: - b: display as bool - i: display as int - l: display as long - A space means the value will be represented using cast - notation. */ - static const char *const code_map = "ibi iii ll ii i "; + char *r; - char code = code_map[peek - 'a']; - /* FIXME: Implement demangling of floats and doubles. */ - if (code == 'u') - return STATUS_UNIMPLEMENTED; - if (code == 'b') + r = malloc (40 + len - 11); + if (r == NULL) + *palc = 1; + else { - /* It's a boolean. */ - char value; - - /* Consume the b. */ - advance_char (dm); - /* Look at the next character. It should be 0 or 1, - corresponding to false or true, respectively. */ - value = peek_char (dm); - if (value == '0') - result_append (dm, "false"); - else if (value == '1') - result_append (dm, "true"); + if (mangled[9] == 'I') + strcpy (r, "global constructors keyed to "); else - return "Unrecognized bool constant."; - /* Consume the 0 or 1. */ - advance_char (dm); - return STATUS_OK; - } - else if (code == 'i' || code == 'l') - { - /* It's an integer or long. */ - - /* Consume the type character. */ - advance_char (dm); - /* Demangle the number and write it out. */ - RETURN_IF_ERROR (demangle_number_literally (dm, value, 10, 1)); - result_append_string (dm, value); - /* For long integers, append an l. */ - if (code == 'l') - result_append_char (dm, code); - return STATUS_OK; + strcpy (r, "global destructors keyed to "); + strcat (r, mangled + 11); } - /* ...else code == ' ', so fall through to represent this - literal's type explicitly using cast syntax. */ + return r; + } + else + { + if ((options & DMGL_TYPES) == 0) + return NULL; + type = 1; } - result_append_char (dm, '('); - RETURN_IF_ERROR (demangle_type (dm)); - result_append_char (dm, ')'); + d_init_info (mangled, options, len, &di); - RETURN_IF_ERROR (demangle_number_literally (dm, value, 10, 1)); - result_append_string (dm, value); - dyn_string_delete (value); + { +#ifdef CP_DYNAMIC_ARRAYS + __extension__ struct d_comp comps[di.num_comps]; + __extension__ struct d_comp *subs[di.num_subs]; - return STATUS_OK; -} + di.comps = &comps[0]; + di.subs = &subs[0]; +#else + di.comps = (struct d_comp *) malloc (di.num_comps + * sizeof (struct d_comp)); + di.subs = (struct d_comp **) malloc (di.num_subs + * sizeof (struct d_comp *)); + if (di.comps == NULL || di.subs == NULL) + { + if (di.comps != NULL) + free (di.comps); + if (di.subs != NULL) + free (di.subs); + *palc = 1; + return NULL; + } +#endif -/* Demangles and emits a . + if (! type) + dc = d_mangled_name (&di, 1); + else + dc = d_type (&di); - ::= # type - ::= L E # literal - ::= LZ E # external name - ::= X E # expression */ + /* If DMGL_PARAMS is set, then if we didn't consume the entire + mangled string, then we didn't successfully demangle it. If + DMGL_PARAMS is not set, we didn't look at the trailing + parameters. */ + if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0') + dc = NULL; -static status_t -demangle_template_arg (dm) - demangling_t dm; -{ - DEMANGLE_TRACE ("template-arg", dm); +#ifdef CP_DEMANGLE_DEBUG + if (dc == NULL) + printf ("failed demangling\n"); + else + d_dump (dc, 0); +#endif - switch (peek_char (dm)) - { - case 'L': - advance_char (dm); + /* We try to guess the length of the demangled string, to minimize + calls to realloc during demangling. */ + estimate = len + di.expansion + 10 * di.did_subs; + estimate += estimate / 8; - if (peek_char (dm) == 'Z') - { - /* External name. */ - advance_char (dm); - /* FIXME: Standard is contradictory here. */ - RETURN_IF_ERROR (demangle_encoding (dm)); - } - else - RETURN_IF_ERROR (demangle_literal (dm)); - RETURN_IF_ERROR (demangle_char (dm, 'E')); - break; + ret = NULL; + if (dc != NULL) + ret = d_print (options, dc, estimate, palc); - case 'X': - /* Expression. */ - advance_char (dm); - RETURN_IF_ERROR (demangle_expression (dm)); - break; +#ifndef CP_DYNAMIC_ARRAYS + free (di.comps); + free (di.subs); +#endif - default: - RETURN_IF_ERROR (demangle_type (dm)); - break; - } +#ifdef CP_DEMANGLE_DEBUG + if (ret != NULL) + { + int rlen; + + rlen = strlen (ret); + if (rlen > 2 * estimate) + printf ("*** Length %d much greater than estimate %d\n", + rlen, estimate); + else if (rlen > estimate) + printf ("*** Length %d greater than estimate %d\n", + rlen, estimate); + else if (rlen < estimate / 2) + printf ("*** Length %d much less than estimate %d\n", + rlen, estimate); + } +#endif + } - return STATUS_OK; + return ret; } -/* Demangles and emits an . - - ::= - ::= - ::= - ::= */ +#if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3) -static status_t -demangle_expression (dm) - demangling_t dm; -{ - char peek = peek_char (dm); - - DEMANGLE_TRACE ("expression", dm); - - if (peek == 'L' || peek == 'T') - RETURN_IF_ERROR (demangle_expr_primary (dm)); - else if (peek == 's' && peek_char_next (dm) == 'r') - RETURN_IF_ERROR (demangle_scope_expression (dm)); - else - /* An operator expression. */ - { - int num_args; - dyn_string_t operator_name; - - /* We have an operator name. Since we want to output binary - operations in infix notation, capture the operator name - first. */ - result_push (dm); - RETURN_IF_ERROR (demangle_operator_name (dm, 1, &num_args)); - operator_name = (dyn_string_t) result_pop (dm); +extern char *__cxa_demangle PARAMS ((const char *, char *, size_t *, int *)); - /* If it's binary, do an operand first. */ - if (num_args > 1) - { - result_append_char (dm, '('); - RETURN_IF_ERROR (demangle_expression (dm)); - result_append_char (dm, ')'); - } +/* ia64 ABI-mandated entry point in the C++ runtime library for + performing demangling. MANGLED_NAME is a NUL-terminated character + string containing the name to be demangled. - /* Now emit the operator, followed by its second (if binary) or - only (if unary) operand. */ - result_append_string (dm, operator_name); - dyn_string_delete (operator_name); - result_append_char (dm, '('); - RETURN_IF_ERROR (demangle_expression (dm)); - result_append_char (dm, ')'); + OUTPUT_BUFFER is a region of memory, allocated with malloc, of + *LENGTH bytes, into which the demangled name is stored. If + OUTPUT_BUFFER is not long enough, it is expanded using realloc. + OUTPUT_BUFFER may instead be NULL; in that case, the demangled name + is placed in a region of memory allocated with malloc. - /* The ternary operator takes a third operand. */ - if (num_args == 3) - { - result_append (dm, ":("); - RETURN_IF_ERROR (demangle_expression (dm)); - result_append_char (dm, ')'); - } - } + If LENGTH is non-NULL, the length of the buffer conaining the + demangled name, is placed in *LENGTH. - return STATUS_OK; -} + The return value is a pointer to the start of the NUL-terminated + demangled name, or NULL if the demangling fails. The caller is + responsible for deallocating this memory using free. -/* Demangles and emits a . + *STATUS is set to one of the following values: + 0: The demangling operation succeeded. + -1: A memory allocation failure occurred. + -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. + -3: One of the arguments is invalid. - ::= sr - ::= sr */ + The demangling is performed using the C++ ABI mangling rules, with + GNU extensions. */ -static status_t -demangle_scope_expression (dm) - demangling_t dm; +char * +__cxa_demangle (mangled_name, output_buffer, length, status) + const char *mangled_name; + char *output_buffer; + size_t *length; + int *status; { - RETURN_IF_ERROR (demangle_char (dm, 's')); - RETURN_IF_ERROR (demangle_char (dm, 'r')); - RETURN_IF_ERROR (demangle_type (dm)); - result_append (dm, "::"); - RETURN_IF_ERROR (demangle_encoding (dm)); - return STATUS_OK; -} + char *demangled; + size_t alc; -/* Demangles and emits an . + if (status == NULL) + return NULL; - ::= - ::= L E # literal - ::= L E # external name */ + if (mangled_name == NULL) + { + *status = -3; + return NULL; + } -static status_t -demangle_expr_primary (dm) - demangling_t dm; -{ - char peek = peek_char (dm); - int unused; + if (output_buffer != NULL && length == NULL) + { + *status = -3; + return NULL; + } - DEMANGLE_TRACE ("expr-primary", dm); + demangled = d_demangle (mangled_name, DMGL_TYPES, &alc); - if (peek == 'T') - RETURN_IF_ERROR (demangle_template_param (dm, &unused)); - else if (peek == 'L') + if (demangled == NULL) { - /* Consume the `L'. */ - advance_char (dm); - peek = peek_char (dm); - - if (peek == '_') - RETURN_IF_ERROR (demangle_mangled_name (dm)); + if (alc == 1) + *status = -1; else - RETURN_IF_ERROR (demangle_literal (dm)); + *status = -2; + return NULL; + } - RETURN_IF_ERROR (demangle_char (dm, 'E')); + if (output_buffer == NULL) + { + if (length != NULL) + *length = alc; } else - return STATUS_ERROR; - - return STATUS_OK; -} - -/* Demangles and emits a . Sets *TEMPLATE_P to non-zero - if the substitution is the name of a template, zero otherwise. If - the substitution token is St, which corresponds to the `::std::' - namespace and can appear in a non-nested name, sets - *SPECIAL_STD_SUBSTITUTION to non-zero; zero otherwise. - - ::= S _ - ::= S_ - - ::= St # ::std:: - ::= Sa # ::std::allocator - ::= Sb # ::std::basic_string - ::= Ss # ::std::basic_string, - ::std::allocator > - ::= Si # ::std::basic_istream > - ::= So # ::std::basic_ostream > - ::= Sd # ::std::basic_iostream > -*/ + { + if (strlen (demangled) < *length) + { + strcpy (output_buffer, demangled); + free (demangled); + demangled = output_buffer; + } + else + { + free (output_buffer); + *length = alc; + } + } -static status_t -demangle_substitution (dm, template_p, special_std_substitution) - demangling_t dm; - int *template_p; - int *special_std_substitution; -{ - int seq_id; - int peek; - dyn_string_t text; + *status = 0; - DEMANGLE_TRACE ("substitution", dm); + return demangled; +} - RETURN_IF_ERROR (demangle_char (dm, 'S')); - *special_std_substitution = 0; +#else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */ - /* Scan the substitution sequence index. A missing number denotes - the first index. */ - peek = peek_char (dm); - if (peek == '_') - seq_id = -1; - /* If the following character is 0-9 or a capital letter, interpret - the sequence up to the next underscore as a base-36 substitution - index. */ - else if (isdigit ((unsigned char) peek) - || (peek >= 'A' && peek <= 'Z')) - RETURN_IF_ERROR (demangle_number (dm, &seq_id, 36, 0)); - else - { - switch (peek) - { - case 't': - result_append (dm, "std"); - *special_std_substitution = 1; - break; +/* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI + mangled name, return a buffer allocated with malloc holding the + demangled name. Otherwise, return NULL. */ - case 'a': - result_append (dm, "std::allocator"); - dyn_string_copy_cstr (dm->last_source_name, "allocator"); - break; +char * +cplus_demangle_v3 (mangled, options) + const char* mangled; + int options; +{ + size_t alc; - case 'b': - result_append (dm, "std::basic_string"); - dyn_string_copy_cstr (dm->last_source_name, "basic_string"); - break; - - case 's': - if (!flag_verbose) - { - result_append (dm, "std::string"); - dyn_string_copy_cstr (dm->last_source_name, "string"); - } - else - { - result_append (dm, "std::basic_string, std::allocator >"); - dyn_string_copy_cstr (dm->last_source_name, "basic_string"); - } - break; + return d_demangle (mangled, options, &alc); +} - case 'i': - if (!flag_verbose) - { - result_append (dm, "std::istream"); - dyn_string_copy_cstr (dm->last_source_name, "istream"); - } - else - { - result_append (dm, "std::basic_istream >"); - dyn_string_copy_cstr (dm->last_source_name, "basic_istream"); - } - break; +/* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling + conventions, but the output formatting is a little different. + This instructs the C++ demangler not to emit pointer characters ("*"), and + to use Java's namespace separator symbol ("." instead of "::"). It then + does an additional pass over the demangled output to replace instances + of JArray with TYPE[]. */ - case 'o': - if (!flag_verbose) - { - result_append (dm, "std::ostream"); - dyn_string_copy_cstr (dm->last_source_name, "ostream"); - } - else - { - result_append (dm, "std::basic_ostream >"); - dyn_string_copy_cstr (dm->last_source_name, "basic_ostream"); - } - break; +char * +java_demangle_v3 (mangled) + const char* mangled; +{ + size_t alc; + char *demangled; + int nesting; + char *from; + char *to; - case 'd': - if (!flag_verbose) - { - result_append (dm, "std::iostream"); - dyn_string_copy_cstr (dm->last_source_name, "iostream"); - } - else - { - result_append (dm, "std::basic_iostream >"); - dyn_string_copy_cstr (dm->last_source_name, "basic_iostream"); - } - break; + demangled = d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS, &alc); - default: - return "Unrecognized ."; + if (demangled == NULL) + return NULL; + + nesting = 0; + from = demangled; + to = from; + while (*from != '\0') + { + if (strncmp (from, "JArray<", 7) == 0) + { + from += 7; + ++nesting; + } + else if (nesting > 0 && *from == '>') + { + while (to > demangled && to[-1] == ' ') + --to; + *to++ = '['; + *to++ = ']'; + --nesting; + ++from; } - - advance_char (dm); - return STATUS_OK; + else + *to++ = *from++; } - /* Look up the substitution text. Since `S_' is the most recent - substitution, `S0_' is the second-most-recent, etc., shift the - numbering by one. */ - text = substitution_get (dm, seq_id + 1, template_p); - if (text == NULL) - return "Substitution number out of range."; + *to = '\0'; - /* Emit the substitution text. */ - result_append_string (dm, text); - - RETURN_IF_ERROR (demangle_char (dm, '_')); - return STATUS_OK; + return demangled; } -/* Demangles and emits a . +#endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */ + +#ifndef IN_GLIBCPP_V3 - := Z E [] - := Z E s [] */ +/* Demangle a string in order to find out whether it is a constructor + or destructor. Return non-zero on success. Set *CTOR_KIND and + *DTOR_KIND appropriately. */ -static status_t -demangle_local_name (dm) - demangling_t dm; +static int +is_ctor_or_dtor (mangled, ctor_kind, dtor_kind) + const char *mangled; + enum gnu_v3_ctor_kinds *ctor_kind; + enum gnu_v3_dtor_kinds *dtor_kind; { - DEMANGLE_TRACE ("local-name", dm); + struct d_info di; + struct d_comp *dc; + int ret; - RETURN_IF_ERROR (demangle_char (dm, 'Z')); - RETURN_IF_ERROR (demangle_encoding (dm)); - RETURN_IF_ERROR (demangle_char (dm, 'E')); - result_append (dm, "'s "); + *ctor_kind = (enum gnu_v3_ctor_kinds) 0; + *dtor_kind = (enum gnu_v3_dtor_kinds) 0; - if (peek_char (dm) == 's') - { - /* Local character string literal. */ - result_append (dm, "string literal"); - /* Consume the s. */ - advance_char (dm); - RETURN_IF_ERROR (demangle_discriminator (dm, 0)); - } - else - { - int unused; - result_append (dm, "local "); - /* Local name for some other entity. Demangle its name. */ - RETURN_IF_ERROR (demangle_name (dm, &unused)); - RETURN_IF_ERROR (demangle_discriminator (dm, 1)); - } + d_init_info (mangled, DMGL_GNU_V3, strlen (mangled), &di); - return STATUS_OK; - } + { +#ifdef CP_DYNAMIC_ARRAYS + __extension__ struct d_comp comps[di.num_comps]; + __extension__ struct d_comp *subs[di.num_subs]; - /* Optimonally demangles and emits a . If there is no - at the current position in the mangled string, the - descriminator is assumed to be zero. Emit the discriminator number - in parentheses, unless SUPPRESS_FIRST is non-zero and the - discriminator is zero. + di.comps = &comps[0]; + di.subs = &subs[0]; +#else + di.comps = (struct d_comp *) malloc (di.num_comps + * sizeof (struct d_comp)); + di.subs = (struct d_comp **) malloc (di.num_subs + * sizeof (struct d_comp *)); + if (di.comps == NULL || di.subs == NULL) + { + if (di.comps != NULL) + free (di.comps); + if (di.subs != NULL) + free (di.subs); + return 0; + } +#endif - ::= _ */ + dc = d_mangled_name (&di, 1); -static status_t -demangle_discriminator (dm, suppress_first) - demangling_t dm; - int suppress_first; -{ - /* Output for s to the demangled name is completely - supressed if not in verbose mode. */ + /* Note that because we did not pass DMGL_PARAMS, we don't expect + to demangle the entire string. */ - if (peek_char (dm) == '_') - { - /* Consume the underscore. */ - advance_char (dm); - if (flag_verbose) - result_append (dm, " [#"); - /* Check if there's a number following the underscore. */ - if (isdigit ((unsigned char) peek_char (dm))) - { - int discriminator; - /* Demangle the number. */ - RETURN_IF_ERROR (demangle_number (dm, &discriminator, 10, 0)); - if (flag_verbose) - /* Write the discriminator. The mangled number is two - less than the discriminator ordinal, counting from - zero. */ - int_to_dyn_string (discriminator + 2, - (dyn_string_t) dm->result); - } - else - { - if (flag_verbose) - /* A missing digit correspond to one. */ - result_append_char (dm, '1'); - } - if (flag_verbose) - result_append_char (dm, ']'); - } - else if (!suppress_first) - { - if (flag_verbose) - result_append (dm, " [#0]"); - } + ret = 0; + while (dc != NULL) + { + switch (dc->type) + { + default: + dc = NULL; + break; + case D_COMP_TYPED_NAME: + case D_COMP_TEMPLATE: + case D_COMP_RESTRICT_THIS: + case D_COMP_VOLATILE_THIS: + case D_COMP_CONST_THIS: + dc = d_left (dc); + break; + case D_COMP_QUAL_NAME: + case D_COMP_LOCAL_NAME: + dc = d_right (dc); + break; + case D_COMP_CTOR: + *ctor_kind = dc->u.s_ctor.kind; + ret = 1; + dc = NULL; + break; + case D_COMP_DTOR: + *dtor_kind = dc->u.s_dtor.kind; + ret = 1; + dc = NULL; + break; + } + } + +#ifndef CP_DYNAMIC_ARRAYS + free (di.subs); + free (di.comps); +#endif + } - return STATUS_OK; + return ret; } -/* Demangle NAME into RESULT, which must be an initialized - dyn_string_t. On success, returns STATUS_OK. On failure, returns - an error message, and the contents of RESULT are unchanged. */ +/* Return whether NAME is the mangled form of a g++ V3 ABI constructor + name. A non-zero return indicates the type of constructor. */ -static status_t -cp_demangle (name, result) - char *name; - dyn_string_t result; +enum gnu_v3_ctor_kinds +is_gnu_v3_mangled_ctor (name) + const char *name; { - status_t status; - int length = strlen (name); - - if (length > 2 && name[0] == '_' && name[1] == 'Z') - { - demangling_t dm = demangling_new (name); - - result_push (dm); - status = demangle_mangled_name (dm); - - if (status == STATUS_OK) - { - dyn_string_t demangled = (dyn_string_t) result_pop (dm); - dyn_string_copy (result, demangled); - dyn_string_delete (demangled); - } - - demangling_delete (dm); - } - else - { - /* It's evidently not a mangled C++ name. It could be the name - of something with C linkage, though, so just copy NAME into - RESULT. */ - dyn_string_copy_cstr (result, name); - status = STATUS_OK; - } + enum gnu_v3_ctor_kinds ctor_kind; + enum gnu_v3_dtor_kinds dtor_kind; - return status; + if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind)) + return (enum gnu_v3_ctor_kinds) 0; + return ctor_kind; } -/* Variant entry point for integration with the existing cplus-dem - demangler. Attempts to demangle MANGLED. If the demangling - succeeds, returns a buffer, allocated with malloc, containing the - demangled name. The caller must deallocate the buffer using free. - If the demangling failes, returns NULL. */ -char * -cplus_demangle_new_abi (mangled) - const char* mangled; +/* Return whether NAME is the mangled form of a g++ V3 ABI destructor + name. A non-zero return indicates the type of destructor. */ + +enum gnu_v3_dtor_kinds +is_gnu_v3_mangled_dtor (name) + const char *name; { - /* Create a dyn_string to hold the demangled name. */ - dyn_string_t demangled = dyn_string_new (0); - /* Attempt the demangling. */ - status_t status = cp_demangle ((char *) mangled, demangled); - if (status == STATUS_OK) - /* Demangling succeeded. */ - { - /* Grab the demangled result from the dyn_string. It was - allocated with malloc, so we can return it directly. */ - char *return_value = dyn_string_release (demangled); - /* The dyn_string can go away. */ - dyn_string_delete (demangled); - /* Hand back the demangled name. */ - return return_value; - } - else - /* Demangling failed. */ - { - dyn_string_delete (demangled); - return NULL; - } + enum gnu_v3_ctor_kinds ctor_kind; + enum gnu_v3_dtor_kinds dtor_kind; + + if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind)) + return (enum gnu_v3_dtor_kinds) 0; + return dtor_kind; } +#endif /* IN_GLIBCPP_V3 */ + #ifdef STANDALONE_DEMANGLER #include "getopt.h" +#include "dyn-string.h" -static void print_usage - PARAMS ((FILE* fp, int exit_value)); +static void print_usage PARAMS ((FILE* fp, int exit_value)); + +#define IS_ALPHA(CHAR) \ + (((CHAR) >= 'a' && (CHAR) <= 'z') \ + || ((CHAR) >= 'A' && (CHAR) <= 'Z')) /* Non-zero if CHAR is a character than can occur in a mangled name. */ #define is_mangled_char(CHAR) \ - (isalnum ((unsigned char) (CHAR)) || (CHAR) == '_') + (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \ + || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$') /* The name of this program, as invoked. */ const char* program_name; @@ -2836,9 +4212,9 @@ print_usage (fp, exit_value) int exit_value; { fprintf (fp, "Usage: %s [options] [names ...]\n", program_name); - fprintf (fp, "Options:\n", program_name); + fprintf (fp, "Options:\n"); fprintf (fp, " -h,--help Display this message.\n"); - fprintf (fp, " -s,--strict Demangle standard names only.\n"); + fprintf (fp, " -p,--no-params Don't display function parameters\n"); fprintf (fp, " -v,--verbose Produce verbose demanglings.\n"); fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n"); @@ -2846,12 +4222,12 @@ print_usage (fp, exit_value) } /* Option specification for getopt_long. */ -static struct option long_options[] = +static const struct option long_options[] = { - { "help", no_argument, NULL, 'h' }, - { "strict", no_argument, NULL, 's' }, - { "verbose", no_argument, NULL, 'v' }, - { NULL, no_argument, NULL, 0 }, + { "help", no_argument, NULL, 'h' }, + { "no-params", no_argument, NULL, 'p' }, + { "verbose", no_argument, NULL, 'v' }, + { NULL, no_argument, NULL, 0 }, }; /* Main entry for a demangling filter executable. It will demangle @@ -2864,9 +4240,9 @@ main (argc, argv) int argc; char *argv[]; { - status_t status; int i; int opt_char; + int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES; /* Use the program name of this program, as invoked. */ program_name = argv[0]; @@ -2874,7 +4250,7 @@ main (argc, argv) /* Parse options. */ do { - opt_char = getopt_long (argc, argv, "hsv", long_options, NULL); + opt_char = getopt_long (argc, argv, "hpv", long_options, NULL); switch (opt_char) { case '?': /* Unrecognized option. */ @@ -2885,12 +4261,12 @@ main (argc, argv) print_usage (stdout, 0); break; - case 's': - flag_strict = 1; + case 'p': + options &= ~ DMGL_PARAMS; break; case 'v': - flag_verbose = 1; + options |= DMGL_VERBOSE; break; } } @@ -2900,41 +4276,12 @@ main (argc, argv) /* No command line arguments were provided. Filter stdin. */ { dyn_string_t mangled = dyn_string_new (3); - dyn_string_t demangled = dyn_string_new (0); - status_t status; + char *s; /* Read all of input. */ while (!feof (stdin)) { - char c = getchar (); - - /* The first character of a mangled name is an underscore. */ - if (feof (stdin)) - break; - if (c != '_') - { - /* It's not a mangled name. Print the character and go - on. */ - putchar (c); - continue; - } - c = getchar (); - - /* The second character of a mangled name is a capital `Z'. */ - if (feof (stdin)) - break; - if (c != 'Z') - { - /* It's not a mangled name. Print the previous - underscore, the `Z', and go on. */ - putchar ('_'); - putchar (c); - continue; - } - - /* Start keeping track of the candidate mangled name. */ - dyn_string_append_char (mangled, '_'); - dyn_string_append_char (mangled, 'Z'); + char c; /* Pile characters into mangled until we hit one that can't occur in a mangled name. */ @@ -2947,50 +4294,53 @@ main (argc, argv) c = getchar (); } - /* Attempt to demangle the name. */ - status = cp_demangle (dyn_string_buf (mangled), demangled); + if (dyn_string_length (mangled) > 0) + { + s = cplus_demangle_v3 (dyn_string_buf (mangled), options); - /* If the demangling succeeded, great! Print out the - demangled version. */ - if (status == STATUS_OK) - fputs (dyn_string_buf (demangled), stdout); - /* Otherwise, it might not have been a mangled name. Just - print out the original text. */ - else - fputs (dyn_string_buf (mangled), stdout); + if (s != NULL) + { + fputs (s, stdout); + free (s); + } + else + { + /* It might not have been a mangled name. Print the + original text. */ + fputs (dyn_string_buf (mangled), stdout); + } + + dyn_string_clear (mangled); + } /* If we haven't hit EOF yet, we've read one character that can't occur in a mangled name, so print it out. */ if (!feof (stdin)) putchar (c); - - /* Clear the candidate mangled name, to start afresh next - time we hit a `_Z'. */ - dyn_string_clear (mangled); } dyn_string_delete (mangled); - dyn_string_delete (demangled); } else /* Demangle command line arguments. */ { - dyn_string_t result = dyn_string_new (0); - /* Loop over command line arguments. */ for (i = optind; i < argc; ++i) { + char *s; + /* Attempt to demangle. */ - status = cp_demangle (argv[i], result); + s = cplus_demangle_v3 (argv[i], options); /* If it worked, print the demangled name. */ - if (status == STATUS_OK) - printf ("%s\n", dyn_string_buf (result)); - /* If not, print the error message to stderr instead. */ - else - fprintf (stderr, "%s\n", status); + if (s != NULL) + { + printf ("%s\n", s); + free (s); + } + else + fprintf (stderr, "Failed: %s\n", argv[i]); } - dyn_string_delete (result); } return 0;